| 1. | Zein H, Baratloo A, Negida A, et al. Ventilator weaning and spontaneous breathing trials: an educational review. Emergency (Tehran), 2016, 4(2): 65-71. | 
				                                                        
				                                                            
				                                                                | 2. | Demoule A, Jung B, Prodanovic H, et al. Diaphragm dysfunction on admission to the intensive care unit. Prevalence, risk factors, and prognostic impact-a prospective study. Am J Respir Crit Care Med, 2013, 188(2): 213-219. | 
				                                                        
				                                                            
				                                                                | 3. | Harper CJ, Shahgholi L, Cieslak K, et al. Variability in diaphragm motion during normal breathing, assessed with B-mode ultrasound. J Orthop Sports Phys Ther, 2013, 43(12): 927-931. | 
				                                                        
				                                                            
				                                                                | 4. | 竇志敏, 李紅, 朱磊, 等. 膈肌淺快呼吸指數對機械通氣慢性阻塞性肺疾病患者撤機的預測價值. 中國呼吸與危重監護雜志, 2017, 16(2): 124-127. | 
				                                                        
				                                                            
				                                                                | 5. | Doorduin J, van Hees HW, vander Hoeven JG, et al. Monitoring of the respiratory muscles in the critically ill. Am J Respir Crit Care Med, 2013, 187(1): 20-27. | 
				                                                        
				                                                            
				                                                                | 6. | 楊旻, 李惠, 尹璐, 等. 床旁肺部超聲在重癥患者機械通氣脫機評估中的應用價值. 中國急救醫學, 2017, 37(11): 1000-1004. | 
				                                                        
				                                                            
				                                                                | 7. | 劉英芹, 盧廣民, 劉耿熙, 等. 膈肌活動度超聲檢測、血清 NT-proBNP 及被動抬腿試驗容量反應性對機械通氣患者困難撤機的預測價值. 山東醫學高等專科學校學報, 2016, 38(6): 417-420. | 
				                                                        
				                                                            
				                                                                | 8. | 胡仕靜, 周樹生, 吳丹, 等. 膈肌超聲預測機械通氣撤機結果的價值. 安徽醫科大學學報, 2016, 51(5): 673-677. | 
				                                                        
				                                                            
				                                                                | 9. | Goligher EC, Laghi F, Detsky ME, et al. Measuring diaphragm thickness with ultrasound in mechanically ventilated patients: feasibility, reproducibility and validity. Intensive Care Med, 2015, 41(4): 642-649. | 
				                                                        
				                                                            
				                                                                | 10. | Golisher EC, Fan E, Herridge MS, et al. Evolution of diaphragm thickness during mechanical ventilation. Impact of inspiratory effort. Am J Respir Crit Care Med, 2015, 192(9): 1080-1088. | 
				                                                        
				                                                            
				                                                                | 11. | Schepens T, Verbrugghe W, Dams K, et al. The course of diaphragm atrophy in ventilated patients assessed with ultrasound: a longitudinal cohort study. Crit Care, 2015, 19: 422. | 
				                                                        
				                                                            
				                                                                | 12. | Boon AJ, Sekiguchi H, Harper CJ, et al. Sensitivity and specificity of diagnostic ultrasound in the diagnosis of phrenic neuropathy. Neurology, 2014, 83(14): 1264-1270. | 
				                                                        
				                                                            
				                                                                | 13. | Ferrari G, De Filippi G, Elia F, et al. Diaphragm ultrasound as a new index of discontinuation from mechanical ventilation. Crit Ultrasound J, 2014, 6(1): 8. | 
				                                                        
				                                                            
				                                                                | 14. | 孫強, 山峰, 董海, 等. 超聲膈肌增厚率對重癥肌無力危象機械通氣患者撤機成功的預測價值. 中華危重病急救醫學, 2017, 9(7): 619-623. | 
				                                                        
				                                                            
				                                                                | 15. | 張海翔, 龔仕金, 宋佳, 等. 膈肌超聲指標對機械通氣患者撤機結果的預測價值研究. 浙江醫學, 2018, 9(5): 919-923. | 
				                                                        
				                                                            
				                                                                | 16. | 宋潔瓊, 鐘鳴. 膈肌超聲在危重癥中的臨床應用. 中華診斷學電子雜志, 2018, 6(2): 95-97. | 
				                                                        
				                                                            
				                                                                | 17. | Zambon M, Greco M, Bocchino S, et al. Assessment of diaphragmatic dysfunction in the critically ill patient with ultrasound: a systematic review. Intensive Care Med, 2017, 43(1): 29-38. | 
				                                                        
				                                                            
				                                                                | 18. | 陸志華, 徐秋萍, 袁月華, 等. 膈肌增厚分數指導慢性阻塞性肺疾病機械通氣患者撤機的臨床研究. 中華急診醫學雜志, 2016, 25(4): 491-494. | 
				                                                        
				                                                            
				                                                                | 19. | 龔仕金, 宋佳, 張海翔. 重癥超聲: 脫機過程中一種有用的評估工具. 浙江醫學, 2017, 39(3): 149-151. | 
				                                                        
				                                                            
				                                                                | 20. | Farghaly S, Hasan AA. Diaphragm ultrasound as a new method to predict extubation outcome in mechanically ventilated patients. Aust Crit Care, 2017, 30(1): 37-43. | 
				                                                        
				                                                            
				                                                                | 21. | Matamis D, Soilemezi E, Tsagourias M, et al. Sonographic evaluation of the diaphragm in critically ill patients. Technique and clinical applications. Intensive Care Med, 2013, 39(5): 801-810. | 
				                                                        
				                                                            
				                                                                | 22. | 劉岷, 駢林萍. 超聲評價膈肌活動度與慢性阻塞性肺疾病患者生活質量及運動能力的相關性研究. 中國呼吸與危重監護雜志, 2018, 17(6): 548-551. |