Impact of introducing the pneumococcal and rotavirus vaccines into the routine immunization program in Niger

Bruce Y. Lee, Tina Marie Assi, Jayant Rajgopal, Bryan A. Norman, Sheng I. Chen, Shawn T. Brown, Rachel B. Slayton, Souleymane Kone, Hailu Kenea, Joel S. Welling, Diana L. Connor, Angela R. Wateska, Anirban Jana, Ann E. Wiringa, Willem G. Van Panhuis, Donald S. Burke