Yun Hyung KOOG1, 2. Caution Should Be Observed Against the Last Observation Carried Forward Analysis in Opioid Trials. Archives of Rheumatology [Internet]. 2013 Dec. 31 [cited 2025 Oct. 3];28(4):282-3. Available from: http://anadolupsikiyatri.net/index.php/pub/article/view/618