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)
Mettananda, D. S. G.; Wickramasinghe, V. P.; Kudolugoda Arachchi, J.; Lamabadusuriya, S. P.; Ajanthan, R.; Kottahachchi, D.(Sri Lanka Medical Association, 2006)