DR. RAANA MAHMOOD, DR. HUMERA ISHAQ, DR. ITRAT JAWED, DR. IFFAT MAHMOOD, and DR.TALAT TARIQ, “COMPARISON OF EFFICACY AND SAFETY PROFILE OF PREGABALIN AND GABAPENTIN IN PAINFUL DIABETIC NEUROPATHY”, IJPDA, vol. 2, no. 4, pp. 354-359, Apr. 2014.