Kobayashi, T <br/><br/>
Variation of 25-hydroxyvitamin D3 and 25-hydroxyvitamin D2 levels in human plasma obtained from 758 Japanese healthy subjects.  [electronic resource] 

 -  Journal of nutritional science and vitaminology  Jun 1983 
 - 271-81 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>0301-4800 
<br/><br/><label>Standard No.: </label>10.3177/jnsv.29.271  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>25-Hydroxyvitamin D 2<br/>Adolescent<br/>Adult<br/>Age Factors<br/>Aged<br/>Calcifediol--blood<br/>Child<br/>Ergocalciferols--analogs & derivatives<br/>Female<br/>Humans<br/>Japan<br/>Male<br/>Middle Aged<br/>Periodicity<br/>Seasons<br/>Sex Factors<br/>Sunlight