Comparing drug regimens for clearance of malaria parasites in asymptomatic adults using PCR in Kilifi County, Kenya: an open-label randomised controlled clinical trial (MalPaC) by Khaemba, EN, Ogwang, C, Kinyanjui, S, Muindi, JM, Koske, JK, Kimani, D, Ngoi, J, Mwacharo, J, Shangala, J, Njuguna, P, Mutinda, D, Nyatichi, E, Peshu, J, Mutinda, B, Ndungu, FM, Farnert, A, Bashraheil, MM, Bejon, P, Kapulu, MC