Tryptophan metabolism determines outcome in tuberculous meningitis: a targeted metabolomic analysis by Ardiansyah, E, Avila-Pacheco, J, Nhat, LTH, Dian, S, Vinh, DN, Hai, HT, Bullock, K, Alisjahbana, B, Netea, MG, Estiasari, R, Tram, TTB, Donovan, J, Heemskerk, D, Chau, TTH, Bang, ND, Ganiem, AR, Ruslami, R, Koeken, VACM, Hamers, RL, Imran, D, Maharani, K, Kumar, V, Clish, CB, van Crevel, R, Thwaites, G, van Laarhoven, A, Thuong, NTT