Columbia subject headings:
Developmental psychology.
Infant psychology.
Infants--Diseases--Psychological aspects.
Mother and child.
Harvard subject headings:
Developmental psychology.
Infant psychology.
Infants--Diseases--Psychological aspects.
Mother and child.
Mother and infant.
Princeton subject headings:
Developmental psychology.
Infant psychology.
Infants--Diseases--Psychological aspects.
Mother and child.