Patient-centred perioperativeoutcomes after major abdominalsurgery in Sri Lanka: amulticentre registry - Benham-Mirando, S.; Abayadeera, A.; Kannangara, S.; Dassanayake, V.; Weerasekara, D.; Priyadarshani, G. D. D.; Haniffa, R. (Wiley, 2020)