Sapkota, B., Tulachan, P., Ojha, S., Chapagai, M., & Dhungana, S. (2019). Factors Influencing Client Retention in Methadone Maintenance Treatment Clinics in the Kathmandu Valley. Journal of Psychiatrists’ Association of Nepal, 8(2), 9–14. https://doi.org/10.3126/jpan.v8i2.28018