The effect of Lean Six Sigma methodology in Promoting Healthcare Service Quality an exploratory For the opinions of a sample of medical and health personnel in the study hospitals city of Mosul Yousra Ghazi Hassan AL-Taee; Thaeir Ahmed Saadoon Al-Samman Volume 15, Issue 4, December 2023, Page 45-67 10.34009/aujeas.2023.182303 Show Article PDF 2.16 M