Asiri Surgical Hospital PLC No. 21, Kirimandala Mawatha, Narahenpita, Colombo –05, Sri Lanka. Tel: +94 11 452 4400 Fax: +94 11 452 445 CEYMED HEALTHCARE SERVICES (PVT) LTD. No. 132, S.De.S. Jayasinghe Mawatha, Nugegoda. Tel: +94-11-4308877 Fax: +94-11-4400414 E-mail: ceymed@sltnet.lk