Bagle A, Nankar Y, Bora K. Single Shot Pectoral Plane Block Type 2 (PECS II) Versus Serratus Anterior Plane Block for Postoperative Analgesia Following Modified Radical Mastectomy for Postoperative Acute and Long-Term Pain: A Randomized Clinical Trial. Arch Anesth & Crit Care. 2025;.