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Mean change in creatinine clearance (top panel) and serum creatinine (bottom panel) from baseline to week 12 by tenofovir disoproxil level (TFV-DP) in dried blood spots among men who have sex with men in a demonstration project of HIV preexposure prophylaxis using daily oral tenofovir disoproxil fumarate/emtricitabine (TDF/FTC). Number of participants in each category is represented by n. Bars represent standard errors.
