Diaphragm-sparing nerve blocks for arthroscopic rotator cuff repair: a systematic review of efficacy, safety, and multimodal analgesia integration. - Erginoğlu, Sadık Emre; Ülgen, Nuri Koray; Yiğit, Nihat; Nazlıgül, Ali Said; Akkurt, Mehmet Orçun (Bulletin of the National Research Centre, 2026)