4Study on status of food test resource and its construction in disease control and prevention system of Heilongjiang province459-461
6Modus operandi and experience on control and prevention of main infectious diseases in Jinan city464-466
13Trend analysis of residenter's death with lung cancer in urban district of Harbin in 1992 -2002520-521
15Necessity and feasibility on separation of hospital and disease prevention institution in villages and towns of underdevelopment zone534-535