A comparative study between high-flow nasal oxygen therapy and venturi mask oxygen therapy for postoperative laparoscopic bariatric surgery patients with atelectasis: a randomized... by Asmaa Ahmed Nabeeh Negmeldin Abdelrahman Allam, Mayar Hassan Sayed Ahmed Elsersi, Galal Adel Mohamed Abdelreheem Elkady, Amr Fouad Hafez, Mohamed Abdelsalam Aly Algendy

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