[Concerning expressionistic phenomena in the first year of life].
D001007:Anxiety; D001519:Behavior; D001921:Brain / Q000502:physiology; D005149:Facial Expression; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D007323:Instinct; D007858:Learning; D002666:Psychology, Child
Uber Ausdrucksphänomene in ersten Lebensjahr.