... study, performed the analysis and prepared the manuscript.MB assisted in drafting the manuscript. EvC and KvdB performed the analysis. BW took care of the statistical analysis. WS, CW and TRdW and ... Geneva:WHO; 2009.7. Chaiwarith R, Wachirakaphan C, Kotarathititum W, Praparatanaphan J,Sirisanthana T, Supparatpinyo K: Sensitivity and specificity of using CD4+measurement and clinical evaluation ... cold-chain transport and deep frozen storage is still a challenge in many places. Therefore, the ART -A team is currently investigating the feasibility of using driedblood spots as a source material...