Dogar, I.A., Haider, M.N., Arshad, M. and Afzal, M.S. 2012. The Relationship between the Characteristics of Mentally Retarded Persons and the Quality of life Perception of their Parents. Annals of Punjab Medical College. 6, 1 (Dec. 2012), 67-71. DOI:https://doi.org/10.29054/apmc/2012.489.