Discordant patterns of genetic variation at two chloroquine resistance loci in worldwide populations of the malaria parasite Plasmodium falciparum

Rajeev K Mehlotra, Gabriel Mattera, Moses J Bockarie, Jason D Maguire, J Kevin Baird, Yagya D Sharma, Michael Alifrangis, Grant Dorsey, Philip J Rosenthal, David J Fryauff, James W Kazura, Mark Stoneking, Peter A Zimmerman