Community-based interventions to address depression, anxiety, sleep problems and substance use disorders among older adults in lower middle-income countries: a systematic review. - Das, Devi; Khasnobis, Madhurima; Dutta, Susmita; Hoda, Suchismita; Pal, Arkaprovo; Dahiya, Neha; Saha, Asim; Kandasamy, Arun; Kraepelien, Martin; Saha, Indranil; Sundström, Christopher; Chakrabarti, Amit (Discover Public Health, 2025)