Hidellage NT, Goonasekera HWW, Jayasekara RW, Wijesundara WSS, Dissanayake VHW. Factor 5 Hong Kong and Cambridge mutations are absent in patients with deep vein thrombosis. 124th Annual Scientific Sessions of the Sri Lanka Medical Association. June 7 to 10, 2011. Colombo, Sri Lanka. (Abstracted in the Ceylon Medical Journal 2011, 56 (supple 1):32)