Utilization of dried blood spot specimens can expedite nationwide surveillance of HIV drug resistance in resource-limited settings. oleh Guoqing Zhang, Joshua DeVos, Sandra Medina-Moreno, Nicholas Wagar, Karidia Diallo, R Suzanne Beard, Du-Ping Zheng, Christine Mwachari, Carolyn Riwa, Boniface Jullu, Ngugi Evelyn Wangari, Mary S Kibona, Lucy W Ng'Ang'A, Elliot Raizes, Chunfu Yang