On May 14th, international health meeting was held(May 13th~16th) in front of the main building of WHO Headquarters in Switzerland Geneva. Yoo, Si Min, the Minister of Health and Welfare, conducted the tree-watering ceremony(8 year-old Jangbaeksong) to commemorate late Lee, Jong Wook, the former director general of WHO, who passed away in May 2006. Margaret Chan, the director general of WHO, and Park, Jong Hwa, the president of KOFIH attended the ceremony.