Serum thyroxine levels in the perinatal guinea pig (Cavia porcellus).
D000818:Animals; D000831:Animals, Newborn / Q000378:metabolism*; D005260:Female; D005333:Fetus / Q000378:metabolism; D006168:Guinea Pigs / Q000378:metabolism*; D007774:Lactation; D008722:Methods; D011247:Pregnancy; D013974:Thyroxine / Q000097:blood*; D013997:Time Factors
D013974:Thyroxine