Safety and immunogenicity of neonatal pneumococcal conjugate vaccination in Papua New Guinean children: a randomised controlled trial. oleh William S Pomat, Anita H J van den Biggelaar, Suparat Phuanukoonnon, Jacinta Francis, Peter Jacoby, Peter M Siba, Michael P Alpers, John C Reeder, Patrick G Holt, Peter C Richmond, Deborah Lehmann, Neonatal Pneumococcal Conjugate Vaccine Trial Study Team