{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,7]],"date-time":"2026-10-07T13:45:54Z","timestamp":1791380754629,"version":"4.3.3"},"reference-count":37,"publisher":"National Institute of Public Health, Prague","issue":"4","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Cent Eur J Public Health","CEJPH"],"published-print":{"date-parts":[[2020,12,18]]},"DOI":"10.21101\/cejph.a5947","type":"journal-article","created":{"date-parts":[[2020,12,18]],"date-time":"2020-12-18T18:37:48Z","timestamp":1608316668000},"page":"306-312","source":"Crossref","is-referenced-by-count":13,"title":["Serum vitamin D levels in healthy urban population at reproductive age: effects of age, gender and season"],"prefix":"10.21101","volume":"28","author":[{"given":"Meri\u00e7","family":"Karacan","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Akin","family":"Usta","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sermin","family":"Bi\u00e7er","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"G\u00fcl","family":"Baktir","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"G\u00fcl","family":"\u0130pek G\u00fcndogan","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ceyda","family":"Sancakli Usta","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Gulsema","family":"Akinci","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"8699","reference":[{"key":"ref0","doi-asserted-by":"publisher","DOI":"10.1056\/NEJMra070553"},{"key":"ref1","doi-asserted-by":"publisher","DOI":"10.1016\/j.ecl.2010.02.008"},{"key":"ref2","doi-asserted-by":"publisher","DOI":"10.1016\/j.amjmed.2009.02.029"},{"key":"ref3","doi-asserted-by":"publisher","DOI":"10.4065\/mcp.2010.0567"},{"key":"ref4","doi-asserted-by":"publisher","DOI":"10.1016\/j.amjmed.2015.05.025"},{"key":"ref5","doi-asserted-by":"publisher","DOI":"10.1111\/j.1447-0594.2010.00668.x"},{"key":"ref6","doi-asserted-by":"publisher","DOI":"10.1016\/j.annepidem.2007.12.001"},{"key":"ref7","doi-asserted-by":"publisher","DOI":"10.1111\/os.12206"},{"key":"ref8","doi-asserted-by":"publisher","DOI":"10.1016\/j.nutres.2014.07.012"},{"key":"ref9","doi-asserted-by":"publisher","DOI":"10.14310\/horm.2002.1674"},{"key":"ref10","doi-asserted-by":"publisher","DOI":"10.1007\/s00198-014-2651-3"},{"key":"ref11","doi-asserted-by":"publisher","DOI":"10.1017\/S1368980012003588"},{"key":"ref12","doi-asserted-by":"publisher","DOI":"10.1016\/j.ejim.2013.11.004"},{"key":"ref13","doi-asserted-by":"publisher","DOI":"10.4158\/EP161604.RA"},{"issue":"3","key":"ref14","first-page":"119","article-title":"What is the optimal level of vitamin D? - separating the evidence from the rhetoric","volume":"43","author":"Lucas","year":"2014","journal-title":"Aust Fam Physician"},{"key":"ref15","doi-asserted-by":"publisher","DOI":"10.1016\/j.jsbmb.2006.12.066"},{"key":"ref16","doi-asserted-by":"publisher","DOI":"10.1093\/ajcn\/84.1.18"},{"key":"ref17","doi-asserted-by":"publisher","DOI":"10.1016\/j.jsbmb.2004.03.040"},{"key":"ref18","doi-asserted-by":"publisher","DOI":"10.1186\/s13052-018-0488-7"},{"key":"ref19","doi-asserted-by":"publisher","DOI":"10.1080\/07315724.2007.10719637"},{"key":"ref20","doi-asserted-by":"publisher","DOI":"10.1093\/gerona\/60.11.1414"},{"key":"ref21","doi-asserted-by":"publisher","DOI":"10.1093\/aje\/kwq005"},{"key":"ref22","doi-asserted-by":"publisher","DOI":"10.1007\/s11657-017-0407-3"},{"key":"ref23","doi-asserted-by":"publisher","DOI":"10.1007\/s11657-018-0461-5"},{"key":"ref24","doi-asserted-by":"publisher","DOI":"10.1111\/j.1365-2265.2007.02873.x"},{"key":"ref25","doi-asserted-by":"publisher","DOI":"10.1016\/j.bone.2010.05.002"},{"key":"ref26","doi-asserted-by":"publisher","DOI":"10.1089\/15246090152636523"},{"key":"ref27","doi-asserted-by":"publisher","DOI":"10.1038\/ejcn.2013.3"},{"key":"ref28","doi-asserted-by":"publisher","DOI":"10.1359\/jbmr.080607"},{"key":"ref29","doi-asserted-by":"publisher","DOI":"10.1359\/jbmr.090728"},{"key":"ref30","doi-asserted-by":"publisher","DOI":"10.1007\/s001980050030"},{"key":"ref31","doi-asserted-by":"publisher","DOI":"10.1136\/bmj.g2035"},{"key":"ref32","doi-asserted-by":"publisher","DOI":"10.1016\/j.mayocp.2018.03.006"},{"key":"ref33","doi-asserted-by":"publisher","DOI":"10.1210\/jc.2002-020636"},{"key":"ref34","doi-asserted-by":"publisher","DOI":"10.1210\/jc.2013-1185"},{"issue":"18","key":"ref35","first-page":"4243","article-title":"Vitamin D in human reproduction: the more, the better? An evidence-based critical appraisal","volume":"21","author":"Lagan\u00e0 AS","year":"2017","journal-title":"Eur Rev Med Pharmacol Sci"},{"key":"ref36","doi-asserted-by":"publisher","DOI":"10.1158\/0008-5472.CAN-10-1420"}],"container-title":["Central European Journal of Public Health"],"original-title":[],"link":[{"URL":"http:\/\/cejph.szu.cz\/doi\/10.21101\/cejph.a5947.pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,6,19]],"date-time":"2026-06-19T17:04:25Z","timestamp":1781888665000},"score":1,"resource":{"primary":{"URL":"http:\/\/cejph.szu.cz\/doi\/10.21101\/cejph.a5947.html"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2020,12,18]]},"references-count":37,"journal-issue":{"issue":"4","published-print":{"date-parts":[[2020,12,18]]}},"URL":"https:\/\/doi.org\/10.21101\/cejph.a5947","relation":{},"ISSN":["1210-7778","1803-1048"],"issn-type":[{"value":"1210-7778","type":"print"},{"value":"1803-1048","type":"electronic"}],"subject":[],"published":{"date-parts":[[2020,12,18]]}}}