Columbia subject headings:
Midwives.
Obstetrics--Practice.
Obstetrics--Social aspects.
Physician and patient.
Power (Social sciences)
Harvard subject headings:
Midwifery.
Midwives.
Obstetrics--Practice
Obstetrics--Social aspects
Physician and patient.
Power (Social sciences)
Princeton subject headings:
Midwives.
Obstetrics--Practice.
Obstetrics--Social aspects.
Physician and patient.
Power (Social sciences)