No abstract available
Publication types
-
Research Support, U.S. Gov't, Non-P.H.S.
-
Research Support, U.S. Gov't, P.H.S.
-
Review
MeSH terms
-
Child Development / physiology*
-
Communication*
-
Female
-
Humans
-
Infant
-
Infant, Newborn
-
Laughter / physiology*
-
Maternal Behavior / psychology*
-
Mother-Child Relations*
-
Mothers / psychology*
-
Play and Playthings / psychology*
-
Psychology, Child*
-
Smiling / physiology*