High levels of retinol intake during the first trimester of pregnancy result from use of over-the-counter vitamin/mineral supplements.
Voyles
L M
LM
Children's Mercy Hospital in Kansas City, Mo., USA.
Turner
R E
RE
Lukowski
M J
MJ
Langkamp-Henken
B
B
D000293:Adolescent; D000328:Adult; D015930:Diet Records; D019587:Dietary Supplements; D005260:Female; D006801:Humans; D004366:Nonprescription Drugs; D018673:Nutrition Policy; D011247:Pregnancy; D011261:Pregnancy Trimester, First; D014801:Vitamin A / Q000008:administration & dosage*
D004366:Nonprescription Drugs; D014801:Vitamin A