Skip to main content
. Author manuscript; available in PMC: 2014 Sep 27.
Published in final edited form as: Cochrane Database Syst Rev. 2003 Apr 22;(2):CD002217. doi: 10.1002/14651858.CD002217
Study Reason for exclusion
Cereghino 1975 Polytherapy comparisons.
White 1966 Polytherapy comparisons.