Antibody persistence and booster response in adolescents and young adults 4 and 7.5 years after immunization with 4CMenB vaccine. - Nolan, Terry; Santolaya, Maria Elena; de Looze, Ferdinandus; Marshall, Helen; Richmond, Peter; Henein, Sam; Rheault, Paul; Heaton, Ken; Perrett, Kirsten P.; Garfield, Hartley; Gupta, Anil; Ferguson, Murdo; et al. (Vaccine, 2019)