Elshanbary AA, Zaazouee MS, Darwish YB, Omran MJ, et al. Efficacy and Safety of Pectoral Nerve Block (Pecs) Compared With Control,
Paravertebral Block, Erector Spinae Plane Block, and Local Anesthesia in Patients
Undergoing Breast Cancer Surgeries: A Systematic Review and Meta-analysis. Clin J Pain 2021;37:925-939.
PMID: 34593675