Waduge, T.R.W.; Pradeepan, M.; Sivasuriam, S.A.; Wijeratne, A.S.D.S.; Warnakulasooriya, A.M.; Wijeyaratne, C.N.; Balen, A.H.(The Sri Lanka College of Obstetricians and Gynaecologists, 2003)
Arandara, D.C.; Waduge, T.R.W.; Wijeyaratne, C.N.; Balen, A.H.; Wijeratne, A.S.D.S.; Gunewardena, A.U.A.(The Sri Lanka College of Obstetricians and Gynaecologists, 2005)