PS Gunaratne, CN Wijeyaratne, P Chandrasiri, S Sivakumaran, K Sellahewa, P Perera, R Fernando, J Wanigasinghe, S Jayasinghe, R Ranawala, MTM Riffsy, HR Seneviratne
Ceylon Medical Journal
51: 137-142
PS Gunaratne, CN Wijeyaratne, P Chandrasiri, S Sivakumaran, K Sellahewa, P Perera, R Fernando, J Wanigasinghe, S Jayasinghe, R Ranawala, MTM Riffsy, HR Seneviratne
Ceylon Medical Journal
51: 137-142