Fig. 1From: How context can impact clinical trials: a multi-country qualitative case study comparison of diagnostic biomarker test interventionsContextual factors influencing C-reactive protein point-of-care test (CRP POCT). Source: Authors, derived from qualitative analysis. “Health systems” here comprise all formal and informal actors involved in promoting, maintaining, or restoring health according to the World Health Organization [91], which can include for example medicine-selling grocery stores alongside public and private hospitalsBack to article page