Elsherbiny, S., Zain Abdelhak, A. . and Mostafa Ismail, O. . . (2022) “Analgesic Efficacy of Pre-Operative Oral Pregabalin in Dacryocystorhinostomy Surgery”, International Journal of Medical Science and Clinical Research Studies , 2(07), pp. 631–637. doi: 10.47191/ijmscrs/v2-i7-07.