Azzari, C. Diez-Domingo, J. Eisenstein, E. Faust, S.N. Konstantopoulos, A. Marshall, G.S. Rodrigues, F. Schwarz, T.F. Weil-Olivier, C., Experts’ opinion for improving global adolescent vaccination rates: a call to action, European Journal of Pediatrics, (179), 547-553, 2020, Springer-Verlag, 0340-6199, 1432-1076