{"id":"https://openalex.org/W2038068231","doi":"https://doi.org/10.1016/s0140-6736(70)91344-9","title":"EFFECT OF AGE ON CALCIUM ABSORPTION","display_name":"EFFECT OF AGE ON CALCIUM ABSORPTION","publication_year":1970,"publication_date":"1970-09-01","ids":{"openalex":"https://openalex.org/W2038068231","doi":"https://doi.org/10.1016/s0140-6736(70)91344-9","mag":"2038068231","pmid":"https://pubmed.ncbi.nlm.nih.gov/4195202"},"language":"en","primary_location":{"id":"doi:10.1016/s0140-6736(70)91344-9","doi":"https://doi.org/10.1016/s0140-6736(70)91344-9","is_oa":false,"landing_page_url":"https://doi.org/10.1016/s0140-6736(70)91344-9","pdf_url":null,"source":{"id":"https://openalex.org/S49861241","display_name":"The Lancet","issn_l":"0099-5355","issn":["0099-5355","0140-6736","1474-547X"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["anvur-class-a","anvur-scientific","cwts-core","dongbi-a","doyens","jufo-3","ki-jl-3","medline","norway-2","poland-200","russia-white-list-1","vabb-shw"],"host_organization":"https://openalex.org/P4310320990","host_organization_name":"Elsevier BV","host_organization_lineage":["https://openalex.org/P4310320990"],"host_organization_lineage_names":["Elsevier BV"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"The Lancet","raw_type":"journal-article"},"volume":null,"type":"article","indexed_in":["crossref","pubmed"],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5090938883","display_name":"J.R. Bullamore","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I1295121038","display_name":"Leeds General Infirmary","ror":"https://ror.org/04hrjej96","country_code":"GB","type":"healthcare","lineage":["https://openalex.org/I1295121038","https://openalex.org/I2799390153"]},{"id":"https://openalex.org/I90344618","display_name":"Medical Research Council","ror":"https://ror.org/03x94j517","country_code":"GB","type":"government","lineage":["https://openalex.org/I4210087105","https://openalex.org/I90344618"]}],"countries":["GB"],"is_corresponding":false,"raw_author_name":"J.R. Bullamore","raw_affiliation_strings":["Medical Research Council Mineral Metabolism Unit, General Infirmary, Leeds LS1 3EX, United Kingdom"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Medical Research Council Mineral Metabolism Unit, General Infirmary, Leeds LS1 3EX, United Kingdom","institution_ids":["https://openalex.org/I1295121038","https://openalex.org/I90344618"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5114232484","display_name":"R. Wilkinson","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I1295121038","display_name":"Leeds General Infirmary","ror":"https://ror.org/04hrjej96","country_code":"GB","type":"healthcare","lineage":["https://openalex.org/I1295121038","https://openalex.org/I2799390153"]},{"id":"https://openalex.org/I90344618","display_name":"Medical Research Council","ror":"https://ror.org/03x94j517","country_code":"GB","type":"government","lineage":["https://openalex.org/I4210087105","https://openalex.org/I90344618"]}],"countries":["GB"],"is_corresponding":false,"raw_author_name":"R. Wilkinson","raw_affiliation_strings":["Medical Research Council Mineral Metabolism Unit, General Infirmary, Leeds LS1 3EX, United Kingdom"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Medical Research Council Mineral Metabolism Unit, General Infirmary, Leeds LS1 3EX, United Kingdom","institution_ids":["https://openalex.org/I1295121038","https://openalex.org/I90344618"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5037448661","display_name":"John Christopher Gallagher","orcid":"https://orcid.org/0000-0002-5129-9183","observed_orcids":["https://orcid.org/0000-0002-5129-9183"]},"institutions":[{"id":"https://openalex.org/I1295121038","display_name":"Leeds General Infirmary","ror":"https://ror.org/04hrjej96","country_code":"GB","type":"healthcare","lineage":["https://openalex.org/I1295121038","https://openalex.org/I2799390153"]},{"id":"https://openalex.org/I90344618","display_name":"Medical Research Council","ror":"https://ror.org/03x94j517","country_code":"GB","type":"government","lineage":["https://openalex.org/I4210087105","https://openalex.org/I90344618"]}],"countries":["GB"],"is_corresponding":false,"raw_author_name":"J.C. Gallagher","raw_affiliation_strings":["Medical Research Council Mineral Metabolism Unit, General Infirmary, Leeds LS1 3EX, United Kingdom"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Medical Research Council Mineral Metabolism Unit, General Infirmary, Leeds LS1 3EX, United Kingdom","institution_ids":["https://openalex.org/I1295121038","https://openalex.org/I90344618"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5112745311","display_name":"B. E. C. Nordin","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I1295121038","display_name":"Leeds General Infirmary","ror":"https://ror.org/04hrjej96","country_code":"GB","type":"healthcare","lineage":["https://openalex.org/I1295121038","https://openalex.org/I2799390153"]},{"id":"https://openalex.org/I90344618","display_name":"Medical Research Council","ror":"https://ror.org/03x94j517","country_code":"GB","type":"government","lineage":["https://openalex.org/I4210087105","https://openalex.org/I90344618"]}],"countries":["GB"],"is_corresponding":false,"raw_author_name":"B.E.C. Nordin","raw_affiliation_strings":["Medical Research Council Mineral Metabolism Unit, General Infirmary, Leeds LS1 3EX, United Kingdom"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Medical Research Council Mineral Metabolism Unit, General Infirmary, Leeds LS1 3EX, United Kingdom","institution_ids":["https://openalex.org/I1295121038","https://openalex.org/I90344618"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5112438883","display_name":"D.H. Marshall","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I1295121038","display_name":"Leeds General Infirmary","ror":"https://ror.org/04hrjej96","country_code":"GB","type":"healthcare","lineage":["https://openalex.org/I1295121038","https://openalex.org/I2799390153"]},{"id":"https://openalex.org/I90344618","display_name":"Medical Research Council","ror":"https://ror.org/03x94j517","country_code":"GB","type":"government","lineage":["https://openalex.org/I4210087105","https://openalex.org/I90344618"]}],"countries":["GB"],"is_corresponding":false,"raw_author_name":"D.H. Marshall","raw_affiliation_strings":["Medical Research Council Environmental Radiation Unit, Department of Medical Physics, General Infirmary, Leeds, United Kingdom"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Medical Research Council Environmental Radiation Unit, Department of Medical Physics, General Infirmary, Leeds, United Kingdom","institution_ids":["https://openalex.org/I1295121038","https://openalex.org/I90344618"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":{"value":7890,"currency":"USD","value_usd":7890},"apc_paid":null,"fwci":13.3207,"has_fulltext":false,"cited_by_count":451,"citation_normalized_percentile":{"value":0.9841345,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":94,"max":100},"biblio":{"volume":"296","issue":"7672","first_page":"535","last_page":"537"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10277","display_name":"Vitamin D Research Studies","score":0.5609999895095825,"subfield":{"id":"https://openalex.org/subfields/2734","display_name":"Pathology and Forensic Medicine"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},"topics":[{"id":"https://openalex.org/T10277","display_name":"Vitamin D Research Studies","score":0.5609999895095825,"subfield":{"id":"https://openalex.org/subfields/2734","display_name":"Pathology and Forensic Medicine"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},{"id":"https://openalex.org/T10071","display_name":"Bone health and osteoporosis research","score":0.4106000065803528,"subfield":{"id":"https://openalex.org/subfields/2732","display_name":"Orthopedics and Sports Medicine"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},{"id":"https://openalex.org/T13112","display_name":"Nutrition and Health Studies","score":0.010599999688565731,"subfield":{"id":"https://openalex.org/subfields/2739","display_name":"Public Health, Environmental and Occupational Health"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/calcium-absorption","display_name":"calcium absorption","score":0.9900000095367432},{"id":"https://openalex.org/keywords/aging","display_name":"aging","score":0.8619999885559082},{"id":"https://openalex.org/keywords/older-adults","display_name":"older adults","score":0.5329999923706055},{"id":"https://openalex.org/keywords/malabsorption","display_name":"malabsorption","score":0.7710000276565552},{"id":"https://openalex.org/keywords/vitamin-d-deficiency","display_name":"vitamin D deficiency","score":0.9330000281333923},{"id":"https://openalex.org/keywords/plasma-radioactivity","display_name":"plasma radioactivity","score":0.8429999947547913},{"id":"https://openalex.org/keywords/bone-metabolism","display_name":"bone metabolism","score":0.3889999985694885}],"concepts":[{"id":"https://openalex.org/C2780439177","wikidata":"https://www.wikidata.org/wiki/Q1442923","display_name":"Malabsorption","level":2,"score":0.944121241569519},{"id":"https://openalex.org/C519063684","wikidata":"https://www.wikidata.org/wiki/Q706","display_name":"Calcium","level":2,"score":0.8467105627059937},{"id":"https://openalex.org/C87975464","wikidata":"https://www.wikidata.org/wiki/Q910704","display_name":"Calcium metabolism","level":3,"score":0.777646005153656},{"id":"https://openalex.org/C189701845","wikidata":"https://www.wikidata.org/wiki/Q382952","display_name":"Isotopes of calcium","level":3,"score":0.6023896336555481},{"id":"https://openalex.org/C125287762","wikidata":"https://www.wikidata.org/wiki/Q1758948","display_name":"Absorption (acoustics)","level":2,"score":0.5930977463722229},{"id":"https://openalex.org/C71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","level":0,"score":0.517524003982544},{"id":"https://openalex.org/C124490489","wikidata":"https://www.wikidata.org/wiki/Q7936963","display_name":"Vitamin D and neurology","level":2,"score":0.5028538107872009},{"id":"https://openalex.org/C126322002","wikidata":"https://www.wikidata.org/wiki/Q11180","display_name":"Internal medicine","level":1,"score":0.46360695362091064},{"id":"https://openalex.org/C42407357","wikidata":"https://www.wikidata.org/wiki/Q521","display_name":"Physiology","level":1,"score":0.41030994057655334},{"id":"https://openalex.org/C134018914","wikidata":"https://www.wikidata.org/wiki/Q162606","display_name":"Endocrinology","level":1,"score":0.40331369638442993},{"id":"https://openalex.org/C90924648","wikidata":"https://www.wikidata.org/wiki/Q120569","display_name":"Gastroenterology","level":1,"score":0.3789859712123871},{"id":"https://openalex.org/C192562407","wikidata":"https://www.wikidata.org/wiki/Q228736","display_name":"Materials science","level":0,"score":0.08268100023269653},{"id":"https://openalex.org/C159985019","wikidata":"https://www.wikidata.org/wiki/Q181790","display_name":"Composite material","level":1,"score":0.0}],"mesh":[{"descriptor_ui":"D000284","descriptor_name":"Administration, Oral","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D000328","descriptor_name":"Adult","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D000368","descriptor_name":"Aged","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D000375","descriptor_name":"Aging","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true},{"descriptor_ui":"D002118","descriptor_name":"Calcium","qualifier_ui":"Q000008","qualifier_name":"administration & dosage","is_major_topic":false},{"descriptor_ui":"D002118","descriptor_name":"Calcium","qualifier_ui":"Q000097","qualifier_name":"blood","is_major_topic":false},{"descriptor_ui":"D002118","descriptor_name":"Calcium","qualifier_ui":"Q000378","qualifier_name":"metabolism","is_major_topic":true},{"descriptor_ui":"D002127","descriptor_name":"Calcium Isotopes","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D005260","descriptor_name":"Female","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D006801","descriptor_name":"Humans","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D007408","descriptor_name":"Intestinal Absorption","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true},{"descriptor_ui":"D008297","descriptor_name":"Male","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D008875","descriptor_name":"Middle Aged","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D012737","descriptor_name":"Sex Factors","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D014808","descriptor_name":"Vitamin D Deficiency","qualifier_ui":"Q000209","qualifier_name":"etiology","is_major_topic":false}],"locations_count":2,"locations":[{"id":"doi:10.1016/s0140-6736(70)91344-9","doi":"https://doi.org/10.1016/s0140-6736(70)91344-9","is_oa":false,"landing_page_url":"https://doi.org/10.1016/s0140-6736(70)91344-9","pdf_url":null,"source":{"id":"https://openalex.org/S49861241","display_name":"The Lancet","issn_l":"0099-5355","issn":["0099-5355","0140-6736","1474-547X"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["anvur-class-a","anvur-scientific","cwts-core","dongbi-a","doyens","jufo-3","ki-jl-3","medline","norway-2","poland-200","russia-white-list-1","vabb-shw"],"host_organization":"https://openalex.org/P4310320990","host_organization_name":"Elsevier BV","host_organization_lineage":["https://openalex.org/P4310320990"],"host_organization_lineage_names":["Elsevier BV"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"The Lancet","raw_type":"journal-article"},{"id":"pmid:4195202","doi":null,"is_oa":false,"landing_page_url":"https://pubmed.ncbi.nlm.nih.gov/4195202","pdf_url":null,"source":{"id":"https://openalex.org/S4306525036","display_name":"PubMed","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I1299303238","host_organization_name":"National Institutes of Health","host_organization_lineage":["https://openalex.org/I1299303238"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Lancet (London, England)","raw_type":"Journal Article"}],"best_oa_location":null,"sustainable_development_goals":[{"display_name":"Good health and well-being","score":0.9391000270843506,"id":"https://metadata.un.org/sdg/3"}],"study_designs":[{"display_name":"Observational Study","id":"https://openalex.org/study-designs/observational-study"}],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":10,"referenced_works":["https://openalex.org/W2000704082","https://openalex.org/W2027731078","https://openalex.org/W2040379554","https://openalex.org/W2092640260","https://openalex.org/W2241973512","https://openalex.org/W2284169513","https://openalex.org/W2309644316","https://openalex.org/W2312724298","https://openalex.org/W2413540766","https://openalex.org/W4299644404"],"related_works":["https://openalex.org/W2088920851","https://openalex.org/W2343040759","https://openalex.org/W2291899410","https://openalex.org/W1914647917","https://openalex.org/W1894243861","https://openalex.org/W2338623670","https://openalex.org/W2400999672","https://openalex.org/W1971345289","https://openalex.org/W2075361891","https://openalex.org/W2143589976"],"abstract_inverted_index":null,"counts_by_year":[{"year":2026,"cited_by_count":5},{"year":2025,"cited_by_count":2},{"year":2024,"cited_by_count":4},{"year":2023,"cited_by_count":8},{"year":2022,"cited_by_count":10},{"year":2021,"cited_by_count":4},{"year":2020,"cited_by_count":7},{"year":2019,"cited_by_count":5},{"year":2018,"cited_by_count":9},{"year":2017,"cited_by_count":7},{"year":2016,"cited_by_count":4},{"year":2015,"cited_by_count":8},{"year":2014,"cited_by_count":13},{"year":2013,"cited_by_count":14},{"year":2012,"cited_by_count":6}],"updated_date":"2026-11-03T10:50:19.383937","created_date":"2016-06-24T00:00:00"}
