Cod liver oil, the ratio of vitamins A and D, frequent respiratory tract infections, and vitamin D deficiency in young children in the United States.
Linday
Linda A
LA
St Luke's-Roosevelt Hospital Center, New York, New York, USA.
Umhau
John C
JC
Shindledecker
Richard D
RD
Dolitsky
Jay N
JN
Holick
Michael F
MF
D002648:Child; D003060:Cod Liver Oil / Q000008:administration & dosage / Q000737:chemistry* / Q000592:standards; D019587:Dietary Supplements / Q000032:analysis; D006801:Humans; D044342:Malnutrition / Q000628:therapy; D012141:Respiratory Tract Infections / Q000453:epidemiology / Q000517:prevention & control; D014481:United States / Q000453:epidemiology; D014801:Vitamin A / Q000008:administration & dosage*; D014807:Vitamin D / Q000008:administration & dosage*; D014808:Vitamin D Deficiency / Q000453:epidemiology / Q000517:prevention & control; D014815:Vitamins / Q000008:administration & dosage*
D014815:Vitamins; D014801:Vitamin A; D014807:Vitamin D; D003060:Cod Liver Oil