Acceptability and Feasibility of Repeated Mucosal Specimen Collection in Clinical Trial Participants in Kenya. - Omosa-Manyonyi, Gloria; Park, Harriet; Mutua, Gaudensia; Farah, Bashir; Bergin, Philip J.; Laufer, Dagna; Lehrman, Jennifer; Chinyenze, Kundai; Barin, Burc; Fast, Pat; Gilmour, Jill; Anzala, Omu (PLoS ONE, 2014)