Monitoring the performance of a dedicated weaning unit using risk-adjusted control charts for the weaning rate in prolonged mechanical ventilation oleh Hsiao-Fang Huang, Jih-Shuin Jerng, Pei-Jung Hsu, Nai-Hua Lin, Li-Min Lin, Shu-Min Hung, Yao-Wen Kuo, Shih-Chi Ku, Pao-Yu Chuang, Shey-Ying Chen