Early surgery versus current step-up practice for chronic pancreatitis: a multicenter randomized controlled trial. - Issa, Y.; Kempeneers, R.; Bruno, M.; Fockens, P.; Poley, J.W.; Ahmed Ali, U.; Besselink, M.; van Santvoort, H.; Dijkgraaf, M.; Boermeester, M. (HPB (1365-182X), 2018)