Regression Model for Socio-demographic, Behavioural and Occupational Risk Factors in Lumbar Disc Herniation (LDH) and Lumbar Disc Degeneration (LDHD)-In Comparison to Apparently Healthy Subjects - Withanage, ND; Perera, S; Peiris, H; Prathapan, S; Athiththan, LV (International journal of human and health sciences, 2021)