Mayo study found incidence of HCQ retinopathy w/ <5 mg/kg/d 5 years = 0%, at 10 years = 2.5% (historically w/ 6.5 mg/kg/d 5 yr incidence 1%,10 years 2%, 20 years 20%) Based on this study, which dose of HCQ will you prescribe? Abstr#540 #ACR20 @rheumnow