Fig. 1From: The dubious value of cerebrospinal fluid adenosine deaminase measurement for the diagnosis of tuberculous meningitisFlow of participants throughout the study. Key to Fig. 1: ? – Suspected infective categories, dx - diagnosis. Confirmed infective categories: refers to all those infective categories where the ‘?’ is omitted. For further breakdown of the ‘Confirmed TBM category’ please see Table 2 Back to article page