amniotic sac
apoptosis
cephalocaudal development
colic
conception
developmental resilience
dose-response relation
embryo
embryonic stem cells
epigenesis
fetal alcohol spectrum disorder (FASD)
fetus
fraternal twins
gametes (germ cells)
habituation
identical twins
infant mortality
low birth weight (LBW)
meiosis
mitosis
neural tube
non-REM sleep
phylogenetic continuity
placenta
premature
rapid eye movement (REM) sleep
sensitive period
small for gestational age
state
sudden infant death syndrome (SIDS)
swaddling
teratogen
umbilical cord
zygote