Wingate, Peter
The Penguin medical encyclopedia
Penguin Books, 1972
 Buku Referensi
The British medical association complete family health encyclopedia
edited by Tony Smith
Dorling Kindersley, 1995
 Buku Referensi
The British Medical Association complete family health encyclopedia
edited by Tony Smith
Dorling Kindersley, 1990
 Buku Referensi
Encyclopedia of global health
General editor, Yawei Zhang
Sage, 2008
 Buku Referensi
Allison, Kathleen Cahill
American Medical Association Complete Guide to Women's Health
Random House, 1996
 Buku Teks SO