“Comparison of Dexmedetomidine or Clonidine As Adjuvant to Preemptive Thoracic Epidural Ropivacaine Analgesia With Propofol Based TIVA in Fast-Track Thoracic Anaesthesia for Open Thoracic Surgeries”. Indian Journal of Applied-Basic Medical Sciences, vol. 23, no. 36, Feb. 2021, pp. 103-18, https://doi.org/10.48165/ijabms.2021.23111.