Fig. 1From: External quality assessment to support the WHO ProSPeRo study for the evaluation of two dual HIV/syphilis point-of-care tests in seven countriesSchematic of EQA implementation workflow. Liquid and DTS EQA panels were prepared at CDC STDLRRB. All panels were shipped to reference laboratories who then distributed DTS panels to clinical POCT sites. All test results were sent back to CDC STDLRRB for gradingBack to article page