RT Journal Article SR Electronic T1 Safer alternatives to transversus thoracis muscle plane block JF Regional Anesthesia & Pain Medicine JO Reg Anesth Pain Med FD BMJ Publishing Group Ltd SP 1040 OP 1040 DO 10.1136/rapm-2019-100666 VO 44 IS 11 A1 Diego García Simón A1 Mario Fajardo Perez YR 2019 UL http://rapm.bmj.com/content/44/11/1040.abstract AB