Xpert MTB/RIF Ultra versus Xpert MTB/RIF for the diagnosis of tuberculous meningitis – a prospective, randomised, diagnostic accuracy study Donovan J, Thu DDA, Phu NH, Dung VTM, Quang TP, Nghia HDT, Oanh PKN, Nhu TB, Chau NVV, Ha VTN, Hang VTT, Trinh DHK, Geskus RB, Tan LV, Thuong NTT, Thwaites GE Lancet Infect Dis January 7, 2020 DOI: 10.1016/S1473-3099(19)30649-8