A call to action: the second Lancet Commission on adolescent health and wellbeing.

Baird S, Choonara S, Azzopardi PS, Banati P, Bessant J, Biermann O, Capon A, Claeson M, Collins PY, De Wet-Billings N, Dogra S, Dong Y, Francis KL, Gebrekristos LT, Groves AK, Hay SI, Imbago-Jácome D, Jenkins AP, Kabiru CW, Kennedy EC, Li L, Lu C, Ma J, McGovern T, Mensa-Kwao A, Mojola SA, Nagata JM, Olumide AO, Omigbodun O, O'Sullivan M, Prost A, Requejo JH, Shawar YR, Shiffman J, Silverman A, Song Y, Swartz S, Tamambang R, Urdal H, Ward JL, Patton GC, Sawyer SM, Ezeh A, Viner RM