De Zoysa, G. E. D.; Hettiarachchi, M.; Jayatilaka, K. A. P. W.; Liyanage, C.(125th Anniversary International Medical Congress of the Sri Lanka Medical Association., 2012)
De Zoysa, G. E. D; Hettiarachchi, M.; Jayatilaka, K. A. P. W.; Liyanage, K. D. C. E.(127th Anniversary International Medical Congress of the Sri Lanka Medical Association., 2014)