National Blood transfusion Service, Sri Lanka No 555/5, Elvitigala Mawatha, Narahenpita Colombo 05.
No. 682, Kotte Road, Rajagiriya.
No. 23, Deshamanya H K Dharmadasa Mw, Colombo 02.
No. 03, Milagiriya Avenue, Colombo 04.