Grant, William B <br/><br/>
Pregnant women are at increased risk for severe A influenza because they have low serum 25-hydroxyvitamin D levels.  [electronic resource] 

 -  Critical care medicine  Sep 2010 
 - 1921; author reply 1921-2 p.  digital 
<br/><br/> Publication Type: Letter; Comment 
<br/><br/><label>ISSN: </label>1530-0293 
<br/><br/><label>Standard No.: </label>10.1097/CCM.0b013e3181e28603  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Female<br/>Humans<br/>Influenza A virus--isolation & purification<br/>Influenza, Human--blood<br/>Pregnancy<br/>Pregnancy Complications, Infectious--blood<br/>Risk Factors<br/>Vitamin D--analogs & derivatives