Columbia subject headings:
Harvard subject headings:
Childbirth in art--Congresses.
Childbirth in literature--Congresses.
Childbirth--Congresses.
Pregnancy in art--Congresses.
Pregnancy in literature--Congresses.
Pregnancy--Congresses.
Princeton subject headings:
Childbirth in art--Congresses.
Childbirth in literature--Congresses.
Childbirth--Congresses.
Pregnancy in art--Congresses.
Pregnancy in literature--Congresses.
Pregnancy--Congresses.