Clemens, T L <br/><br/>
Serum vitamin D2 and vitamin D3 metabolite concentrations and absorption of vitamin D2 in elderly subjects.  [electronic resource] 

 -  The Journal of clinical endocrinology and metabolism  Sep 1986 
 - 656-60 p.  digital 
<br/><br/> Publication Type: Journal Article; Research Support, U.S. Gov't, P.H.S. 
<br/><br/><label>ISSN: </label>0021-972X 
<br/><br/><label>Standard No.: </label>10.1210/jcem-63-3-656  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>25-Hydroxyvitamin D 2<br/>Aged<br/>Aging<br/>Calcifediol--blood<br/>Calcitriol--blood<br/>Ergocalciferols--analogs & derivatives<br/>Female<br/>Humans<br/>Intestinal Absorption<br/>Male<br/>Middle Aged<br/>Vitamin D--metabolism