Hayes, S., El Raouf, R., El Metwally Farahat, T., El Deen Hamed, E. (2017). Efficacy of adding tramadol as adjunctive analgesic with levobupivacaine in modified pectoral nerve block for modified radical mastectomy surgery. EKB Journal Management System, 33(4), 339-343. doi: 10.1016/j.egja.2017.08.005
Salwa M.S. Hayes; Reem Abd El Raouf; Tamer El Metwally Farahat; Emad El Deen Hamed. "Efficacy of adding tramadol as adjunctive analgesic with levobupivacaine in modified pectoral nerve block for modified radical mastectomy surgery". EKB Journal Management System, 33, 4, 2017, 339-343. doi: 10.1016/j.egja.2017.08.005
Hayes, S., El Raouf, R., El Metwally Farahat, T., El Deen Hamed, E. (2017). 'Efficacy of adding tramadol as adjunctive analgesic with levobupivacaine in modified pectoral nerve block for modified radical mastectomy surgery', EKB Journal Management System, 33(4), pp. 339-343. doi: 10.1016/j.egja.2017.08.005
Hayes, S., El Raouf, R., El Metwally Farahat, T., El Deen Hamed, E. Efficacy of adding tramadol as adjunctive analgesic with levobupivacaine in modified pectoral nerve block for modified radical mastectomy surgery. EKB Journal Management System, 2017; 33(4): 339-343. doi: 10.1016/j.egja.2017.08.005