1. An evaluation catheter related bloodstream infection of surveillance system on end-stage renal disease at Niramit Hemodialysis Center, Chiang Khong Crown Prince Hospital, January 1 to December 31, 2016.
2. The effectiveness of ideal model among patients with COPD and risk groups at Ban Huai Yen, Rimkhong sub- district, Chiang Khong district, Chiang Rai province.