Clinical recommendation	Evidence rating	References	Comments
Hawthorn, in the form of a standard extract (LI 132 or WS 1442), can be used as an adjunct to standard therapy to relieve symptoms of New York Heart Association classes I through III chronic congestive heart failure. There is no evidence of a decrease in mortality.	A	1, 4, 14–16, 23, 24, 27, 28	Based on a systematic review of 14 RCTs14 and a meta-analysis of 13 RCTs15 ; studies were short-term, and long-term data are lacking.