Javed, M.S., Subhani, G.M., Akmal, M., Munir, M.I. and Javed, S.H. 2021. Tramadol or Nalbuphine; Which One is Superior for Analgesia in Post-Operative Period after Percutaneous Nephrolithotomy. Annals of Punjab Medical College. 15, 1 (Mar. 2021), 51-54. DOI:https://doi.org/10.29054/apmc/2021.1062.