Comparative clinical evaluation on herbal formulation Pepsil, Safoof-e-Katira and Omeprazole in gastro esophageal reflux disease

Muhammad Umar Toseef, Aftab Saeed, Ejaz Mohi-ud-Din, Khan Usmanghani, Halima Nazar, Allah Nawaz, Irshad Ahmad, Faheem Ahmed Siddiqui