1. Unconventional medicine in the United States;Eisenberg;N. Engl. J. Med.,1993
2. The Canada Health Monitor, Survey No. 4, July–August 1990;Berger,1990
3. Use of alternative medicine in patients attending a gastroenterology clinic;Verhoef;Can. Med. Assoc. J.,1990
4. Young doctors' views on alternative medicine;Reilly;Br. Med. J.,1983
5. Complementary medicine and the general practitioner;Wharton;Br. Med. J.,1986