General Medicine: Review Article Non-Invasive Objective Markers to Measure Pain: A Direction to Develop a Pain Device – A Narrative Review Varun Shekhar, Nandan Choudhary, Puneet Rathore, Suraj Pal Singh, Sushma Bhatnagar Indian J Palliat Care 29:2; 217-222 DOI: 10.25259/IJPC_257_2022 Full text | PDF General Medicine: Review Article Non-Invasive Objective Markers to Measure Pain: A Direction to Develop a Pain Device – A Narrative Review Varun Shekhar, Nandan Choudhary, Puneet Rathore, Suraj Pal Singh, Sushma Bhatnagar Indian J Palliat Care 29:2; 217-222 DOI: 10.25259/IJPC_257_2022 Full text | PDF