Dysfunction among Families of Children with Intellectual Disability in India Using Systems Model: Prevalence, Pattern, and Severity of Impairment. Issue 1 (January 2018) - Rani, Pastin Pushpa; Charles, Helen; Russell, Paul Swamidhas Sudhakar; Selvaraj, K. G.; Mammen, Priya Mary; Russell, Sushila; Nair, Muttathu K. C.