{"id":"https://openalex.org/W673228","doi":null,"title":"[Determination of copper, zinc, iron and calcium in wheat and maize and three nitrogen compounds in high and low risk areas of esophageal cancer].","display_name":"[Determination of copper, zinc, iron and calcium in wheat and maize and three nitrogen compounds in high and low risk areas of esophageal cancer].","publication_year":1998,"publication_date":"1998-01-01","ids":{"openalex":"https://openalex.org/W673228","mag":"673228","pmid":"https://pubmed.ncbi.nlm.nih.gov/10682644"},"language":"en","primary_location":{"id":"pmid:10682644","doi":null,"is_oa":false,"landing_page_url":"https://pubmed.ncbi.nlm.nih.gov/10682644","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":"Wei sheng yan jiu = Journal of hygiene research","raw_type":"English Abstract"},"volume":null,"type":"article","indexed_in":["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/A5100326395","display_name":"Wu Li","orcid":"https://orcid.org/0000-0003-3942-0515","observed_orcids":["https://orcid.org/0000-0003-3942-0515"]},"institutions":[{"id":"https://openalex.org/I80626142","display_name":"Henan Medical University","ror":"https://ror.org/038hzq450","country_code":"CN","type":"education","lineage":["https://openalex.org/I80626142"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"W Li","raw_affiliation_strings":["Dept. of Nutrition and Food Hygiene, Henan Medical University, Zhengzhou, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Dept. of Nutrition and Food Hygiene, Henan Medical University, Zhengzhou, China","institution_ids":["https://openalex.org/I80626142"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5107937141","display_name":"W Lu","orcid":"https://orcid.org/0009-0004-5043-0989","observed_orcids":["https://orcid.org/0009-0004-5043-0989"]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"W Lu","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5107145599","display_name":"M. H. Zhu","orcid":"https://orcid.org/0000-0001-5209-019X","observed_orcids":["https://orcid.org/0000-0001-5209-019X"]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"M Zhu","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"last","author":{"id":"https://openalex.org/A5107914364","display_name":"Buyun Shi","orcid":"https://orcid.org/0000-0002-5781-8933","observed_orcids":["https://orcid.org/0000-0002-5781-8933"]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"B Shi","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":2,"citation_normalized_percentile":{"value":0.00011048,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":"27","issue":"1","first_page":"69","last_page":"71"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10619","display_name":"Esophageal Cancer Research and Treatment","score":0.4165000021457672,"subfield":{"id":"https://openalex.org/subfields/2746","display_name":"Surgery"},"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/T10619","display_name":"Esophageal Cancer Research and Treatment","score":0.4165000021457672,"subfield":{"id":"https://openalex.org/subfields/2746","display_name":"Surgery"},"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/T10915","display_name":"Trace Elements in Health","score":0.25589999556541443,"subfield":{"id":"https://openalex.org/subfields/2916","display_name":"Nutrition and Dietetics"},"field":{"id":"https://openalex.org/fields/29","display_name":"Nursing"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},{"id":"https://openalex.org/T13079","display_name":"Heavy Metals in Plants","score":0.0885000005364418,"subfield":{"id":"https://openalex.org/subfields/1602","display_name":"Analytical Chemistry"},"field":{"id":"https://openalex.org/fields/16","display_name":"Chemistry"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/esophageal-cancer","display_name":"esophageal cancer","score":0.9769999980926514},{"id":"https://openalex.org/keywords/wheat","display_name":"wheat","score":0.5609999895095825},{"id":"https://openalex.org/keywords/maize","display_name":"maize","score":1.0},{"id":"https://openalex.org/keywords/trace-elements","display_name":"trace elements","score":0.7459999918937683},{"id":"https://openalex.org/keywords/copper","display_name":"copper","score":0.8429999947547913},{"id":"https://openalex.org/keywords/zinc","display_name":"zinc","score":0.9980000257492065},{"id":"https://openalex.org/keywords/iron","display_name":"iron","score":1.0},{"id":"https://openalex.org/keywords/calcium","display_name":"calcium","score":0.9990000128746033},{"id":"https://openalex.org/keywords/drinking-water","display_name":"drinking water","score":0.6679999828338623},{"id":"https://openalex.org/keywords/nitrite","display_name":"nitrite","score":0.8180000185966492},{"id":"https://openalex.org/keywords/nitrate","display_name":"nitrate","score":0.628000020980835},{"id":"https://openalex.org/keywords/ammonia-nitrogen","display_name":"ammonia nitrogen","score":0.8429999947547913},{"id":"https://openalex.org/keywords/linzhou","display_name":"Linzhou","score":0.7239999771118164},{"id":"https://openalex.org/keywords/yuzhou","display_name":"Yuzhou","score":0.8769999742507935},{"id":"https://openalex.org/keywords/etiology","display_name":"etiology","score":0.6570000052452087}],"concepts":[{"id":"https://openalex.org/C535196362","wikidata":"https://www.wikidata.org/wiki/Q758","display_name":"Zinc","level":2,"score":0.7265705466270447},{"id":"https://openalex.org/C519063684","wikidata":"https://www.wikidata.org/wiki/Q706","display_name":"Calcium","level":2,"score":0.6369794011116028},{"id":"https://openalex.org/C2776179834","wikidata":"https://www.wikidata.org/wiki/Q72158415","display_name":"Nitrite","level":3,"score":0.6134204268455505},{"id":"https://openalex.org/C185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","level":0,"score":0.6128668785095215},{"id":"https://openalex.org/C544778455","wikidata":"https://www.wikidata.org/wiki/Q753","display_name":"Copper","level":2,"score":0.5948889255523682},{"id":"https://openalex.org/C2776384668","wikidata":"https://www.wikidata.org/wiki/Q182168","display_name":"Nitrate","level":2,"score":0.5523727536201477},{"id":"https://openalex.org/C107872376","wikidata":"https://www.wikidata.org/wiki/Q321355","display_name":"Environmental chemistry","level":1,"score":0.4856918752193451},{"id":"https://openalex.org/C537208039","wikidata":"https://www.wikidata.org/wiki/Q627","display_name":"Nitrogen","level":2,"score":0.467120498418808},{"id":"https://openalex.org/C140793950","wikidata":"https://www.wikidata.org/wiki/Q168091","display_name":"Animal science","level":1,"score":0.41488057374954224},{"id":"https://openalex.org/C6557445","wikidata":"https://www.wikidata.org/wiki/Q173113","display_name":"Agronomy","level":1,"score":0.3434974253177643},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.13898977637290955},{"id":"https://openalex.org/C178790620","wikidata":"https://www.wikidata.org/wiki/Q11351","display_name":"Organic chemistry","level":1,"score":0.0}],"mesh":[{"descriptor_ui":"D002118","descriptor_name":"Calcium","qualifier_ui":"Q000032","qualifier_name":"analysis","is_major_topic":false},{"descriptor_ui":"D003300","descriptor_name":"Copper","qualifier_ui":"Q000032","qualifier_name":"analysis","is_major_topic":true},{"descriptor_ui":"D003313","descriptor_name":"Zea mays","qualifier_ui":"Q000737","qualifier_name":"chemistry","is_major_topic":false},{"descriptor_ui":"D004938","descriptor_name":"Esophageal Neoplasms","qualifier_ui":"Q000209","qualifier_name":"etiology","is_major_topic":false},{"descriptor_ui":"D006801","descriptor_name":"Humans","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D007501","descriptor_name":"Iron","qualifier_ui":"Q000032","qualifier_name":"analysis","is_major_topic":false},{"descriptor_ui":"D014881","descriptor_name":"Water Supply","qualifier_ui":"Q000032","qualifier_name":"analysis","is_major_topic":true},{"descriptor_ui":"D014908","descriptor_name":"Triticum","qualifier_ui":"Q000737","qualifier_name":"chemistry","is_major_topic":true},{"descriptor_ui":"D015032","descriptor_name":"Zinc","qualifier_ui":"Q000032","qualifier_name":"analysis","is_major_topic":false},{"descriptor_ui":"D017672","descriptor_name":"Nitrogen Compounds","qualifier_ui":"Q000032","qualifier_name":"analysis","is_major_topic":true}],"locations_count":2,"locations":[{"id":"pmid:10682644","doi":null,"is_oa":false,"landing_page_url":"https://pubmed.ncbi.nlm.nih.gov/10682644","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":"Wei sheng yan jiu = Journal of hygiene research","raw_type":"English Abstract"},{"id":"mag:673228","doi":null,"is_oa":false,"landing_page_url":"https://pubmed.ncbi.nlm.nih.gov/10682644","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":null,"is_accepted":false,"is_published":false,"raw_source_name":"PubMed","raw_type":null}],"best_oa_location":null,"sustainable_development_goals":[{"display_name":"Good health and well-being","id":"https://metadata.un.org/sdg/3","score":0.98580002784729},{"display_name":"Zero hunger","id":"https://metadata.un.org/sdg/2","score":0.9208999872207642}],"sustainable_development_goals_aurora":[{"display_name":"Clean water and sanitation","id":"https://metadata.un.org/sdg/6","score":0.44999998807907104}],"study_designs":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":0,"referenced_works":[],"related_works":["https://openalex.org/W2362763288","https://openalex.org/W2014128983","https://openalex.org/W7095161010","https://openalex.org/W2963589787","https://openalex.org/W2187370726","https://openalex.org/W2366349389","https://openalex.org/W2434971735","https://openalex.org/W2135738841","https://openalex.org/W2356145208","https://openalex.org/W2093764141"],"abstract_inverted_index":{"This":[0],"study":[1],"reports":[2],"the":[3,44,63,71,90,94,102,109,127,138],"concentrations":[4,45,65,79,98,111,119,129],"of":[5,25,32,35,46,83,112,120,130,140],"copper,":[6],"zinc,":[7,113],"iron":[8,72,114],"and":[9,13,20,28,48,52,70,96,115,117,132],"calcium":[10,49,116],"in":[11,38,50,66,73,80,122],"wheat":[12,51],"maize":[14,53,74],"from":[15,54,61,86],"high":[16,118,128],"risk":[17,22],"area":[18,23],"Linzhou":[19,55,87],"low":[21,110],"Yuzhou":[24],"esophageal":[26,141],"cancer":[27],"three":[29],"nitrogen":[30],"compounds":[31],"four":[33,81],"types":[34,82],"drinking":[36,84],"water":[37,85],"Linzhou.":[39],"The":[40,77,105],"results":[41,106],"showed":[42],"that":[43,108],"zinc":[47],"were":[56,68,88,99],"significantly":[57],"lower":[58],"than":[59,101],"these":[60],"Yuzhou,":[62],"copper":[64,121],"grains":[67,123],"higher":[69,100],"was":[75],"lower.":[76],"nitrate-N":[78],"below":[89],"national":[91,103],"standard":[92],"but":[93],"nitrite":[95,131],"NH3-N":[97,133],"limits.":[104],"suggest":[107],"as":[124,126],"well":[125],"may":[134],"be":[135],"related":[136],"to":[137],"etiology":[139],"cancer.":[142]},"counts_by_year":[],"updated_date":"2026-10-31T12:09:11.096373","created_date":"2016-06-24T00:00:00"}
