mammalian only; human: 3d month to term; fetus in fetu: index under FETUS/abnorm; FETUS and PREGNANCY: Manual 18.4.3, 21.55; specialty for fetus & newborn infant = PERINATOLOGY; lithopedion: coordinate FETUS (IM) + CALCINOSIS (IM); intrauterine surgery goes under FETUS/surg; fetal organs & tissues in tissue & cell cultures: coordinate FETUS + organ or tissue without qualifiers + culture term, all probably NIM
Scope Note
The unborn young of a viviparous mammal, in the postembryonic period, after the major structures have been outlined. In humans, the unborn young from the end of the eighth week after CONCEPTION until BIRTH, as distinguished from the earlier EMBRYO, MAMMALIAN.
The unborn young of a viviparous mammal, in the postembryonic period, after the major structures have been outlined. In humans, the unborn young from the end of the eighth week after CONCEPTION until BIRTH, as distinguished from the earlier EMBRYO, MAMMALIAN.
A fetus that is not delivered at the initial PARTURITION of a MULTIPLE PREGNANCY, usually of twins in humans. The retained fetus can progress to term and result in LIVE BIRTH.
