Gonococcal vaccines: Public health value and preferred product characteristics; report of a WHO global stakeholder consultation, January 2019 by Gottlieb, SL, Ndowa, F, Hook, EW, Deal, C, Bachmann, L, Abu-Raddad, L, Chen, X-S, Jerse, A, Low, N, MacLennan, CA, Petousis-Harris, H, Seib, KL, Unemo, M, Vincent, L, Giersing, BK