Drug concentrations in hair and dried blood spots as PrEP adherence metrics during pregnancy and postpartum.

Wu L, Kinuthia J, Anderson PL, Baeten JM, Dettinger JC, Gandhi M, Gomez L, John-Stewart G, Marwa MM, Ngumbau N, Otieno F, Omondi P, Odhiambo B, Watoyi S, Pintye J