Serotype distribution of clinical Streptococcus pneumoniae isolates before the introduction of the 13-valent pneumococcal conjugate vaccine in Cambodia by Inghammar, M, By, Y, Farris, C, Phe, T, Borand, L, Kerleguer, A, Goyet, S, Saphonn, V, Phoeung, C, Vong, S, Rammaert, B, Mayaud, C, Guillard, B, Yasuda, C, Kasper, MR, Ford, G, Newell, SW, An, US, Sokhal, B, Touch, S, Turner, P, Jacobs, J, Messaoudi, M, Komurian-Pradel, F, Tarantola, A