Columbia subject headings:
Midwives--Canada.
Midwives--Legal status, laws, etc.--Canada.
Obstetrics--Canada.
Obstetrics--Law and legislation--Canada.
Harvard subject headings:
Midwifery--Canada.
Midwives--Canada.
Midwives--Legal status, laws, etc.--Canada.
Obstetrics--Canada.
Obstetrics--Law and legislation--Canada.
Princeton subject headings:
Midwives--Canada.
Midwives--Legal status, laws, etc.--Canada.
Obstetrics--Canada.
Obstetrics--Law and legislation--Canada.