Columbia subject headings:
Harvard subject headings:
Childbirth in literature--Congresses.
Childbirth in mass media--Congresses.
Childbirth--Folklore--Congresses.
Childbirth--Religious aspects--Congresses.
Childbirth--Sociological aspects--Congresses.
Princeton subject headings:
Childbirth in literature--Congresses.
Childbirth--Folklore--Congresses.
Childbirth--Religious aspects--Congresses.
Childbirth--Sociological aspects--Congresses.