Mohammad Abdelrahman Hussein, MD; Sayed Abd Elsabour Kinawy, MD; Dhafer Saleh Al Bahri, Ahmed Abdelhay Abouelenein, Amr Elsafty, MSc; Ayman Abdelsabour, Hamada Kolak, Abdelrahman Abdelhady, MSc; Aldhili Mohammed Khalid, Tarek Mohamed Afifi, MD. Improving operating theatre utilization time in New Najran General Hospital using lean six sigma approach, is it still a valid strategy in healthcare?. SEEJPH [Internet]. 2025 Feb. 23 [cited 2026 Apr. 3];:4759-71. Available from: https://www.seejph.com/index.php/seejph/article/view/4986