1. Department of Anesthesiology Keck School of Medicine of USC Los Angeles California
2. Department of Anesthesiology and Critical Care, AO St. Antonio Biagio and Cesare Arrigo Alessandria Italy
3. Department of Emergency Medicine, Anesthesia and Critical Care Division Michele and Pietro Ferrero Hospital Alba‐Bra‐Verduno Italy
4. Division of Breast, Endocrine, and Soft Tissue Surgery, Department of Surgery, Keck School of Medicine of USC and Surgical Oncology Service LAC+USC Medical Center Los Angeles California