Usha 2004.

Methods	Randomized controlled trial Double blinded Parallel group Single center
Participants	Outpatients with mild to moderate osteoarthritis of the knee Country: India N =118 Mean age = 51 years 60% female 40% male
Interventions	GS versus MSM versus GS+MSM versus placebo Duration: 12 weeks
Outcomes	Pain, Lequesne Index, walk time, joint swelling, usage of rescue analgesics, global patient, global investigator
Notes
Risk of bias
Bias	Authors' judgement	Support for judgement
Allocation concealment?	High risk	C ‐ Inadequate