Jahan, C.R., Uddin, M.M., Uddin, M.S., Hoq Chowdury, M.U., Wajeunnesa, .-. and Naher, M.Q. 2020. Parasympathetic Nerve Function Status in Major Depressive Disorder Patients and Its Correlation with Duration of Disease. Medicine Today. 32, 2 (Aug. 2020), 76–80. DOI:https://doi.org/10.3329/medtoday.v32i2.48817.