Efficacy of an 11-valent pneumococcal conjugate vaccine against radiologically confirmed pneumonia among children less than 2 years of age in the Philippines: A randomized, double-blind, placebo-controlled trial

Lucero MG, Tallo V, Lupisan S, Sanvictores D, Ugpo J, Lechago M, Abucejo-Ladesma E, Sombrero L, Nohynek H, Puumalainen T, Nissinen A, Soininen A, Ruutu P, Makela HP, Williams G, Forsyth S, De Campo M, Riley I, Simoes EAF. Efficacy of an 11-valent pneumococcal conjugate vaccine against radiologically confirmed pneumonia among children less than 2 years of age in the Philippines: A randomized, double-blind, placebo-controlled trial. Pediatr Infect Dis J. 2009; 28(6): 455-62.