Chinese herbal medicines for people with impaired glucose tolerance or impaired fasting blood glucose

. Author manuscript; available in PMC: 2011 Oct 12.

Published in final edited form as: Cochrane Database Syst Rev. 2009 Oct 7;(4):CD006690. doi: 10.1002/14651858.CD006690.pub2

Reason for exclusion	Quasi-randomised study comparing the effects of Xiao yang tang (tao ren 15g, mu dan pi 15g, dan shen 15g, xuan shen 15g, da huang 10g, yu jin 10g, chuan bei mu 10g, lai fu zi 10g) versus metformin in 90 people with impaired glucose tolerance. The method of randomisation was alternation.
	From a phone call it was determined that the participants were randomised on the basis of alternation.