Advancing proficiency testing for ultra in resource-limited settings using dried tube specimen: A study by SRL-Uganda. oleh Joel Kabugo, Joanita Namutebi, Isa Adam, Dennis Mujuni, Didas Tugumisirize, Oola Denis, George William Kasule, Ivan Ibanda, Beatrice Orena, Henry Byabajungu, Elizabeth Nampewo, Moses Joloba