Quantifying long-term health and economic outcomes for survivors of group B Streptococcus invasive disease in infancy: protocol of a multi-country study in Argentina, India, Kenya,... by Paul, P, Procter, SR, Dangor, Z, Bassat, Q, Abubakar, A, Santhanam, S, Libster, R, Gonçalves, BP, Madhi, SA, Bardají, A, Mwangome, E, Mabrouk, A, John, HB, Sánchez Yanotti, C, Chandna, J, Sithole, P, Mucasse, H, Katana, PV, Koukounari, A, Harden, LM, Aerts, C, Ghoor, A, Leahy, S, Mbatha, S, Lowick, S, Lala, SG, Bramugy, J, Newton, C, Tanvir Hossain, AKM, Sadeq-ur Rahman, Q, Lambach, P, Jit, M, Lawn, JE