Editorial: Choice of the number of sampling units in teratology.
D000014:Abnormalities, Drug-Induced / Q000453:epidemiology* / Q000209:etiology; D000818:Animals; D000013:Congenital Abnormalities / Q000453:epidemiology* / Q000209:etiology; D004622:Embryo, Mammalian; D004625:Embryo, Nonmammalian; D005260:Female; D005333:Fetus; D008431:Maternal-Fetal Exchange; D011247:Pregnancy; D012107:Research Design; D012494:Sampling Studies; D013223:Statistics as Topic