Effectiveness and implementation of a primary healthcare intervention for multimorbidity and frailty among urban older adults in India: Protocol for the Multi-FrAME cluster randomized trial. - Kshatri, Jaya Singh; Bhattacharya, Haimanti; Goutam, Siddhartha; Mahakuda, Ashok Kumar; Nayak, Rasmiranjan; Adukkadukam Kambikanam, Kavitha; Rehman, Tanveer; Sinha, Abhinav; Sahu, Mamata Manjari; Mohakud, Kshanaprava; Das, Purna Chandra; Pati, Sanghamitra (PLoS ONE, 2026)