[1] Banaras Hindu Univ, Dept Community Med, Inst Med Sci, Varanasi, Uttar Pradesh, India
[2] London Sch Econ & Polit Sci, Personal Social Serv Res Unit, London, England
[3] Kathmandu Univ, Dept Community Med, Devdaha Med Coll, Devdaha 10, Bhaluhi, Rupandehi, Nepal
[4] Kathmandu Univ, Res Inst, Devdaha 10, Bhaluhi, Rupandehi, Nepal
[5] Tribhuvan Univ, Dept Community Med & Publ Hlth, Janaki Med Coll, Janakpur, Nepal
[6] Kings Coll London, Inst Psychiat Psychol & Neurosci, London, England
[7] Purbanchal Univ, Dept Publ Hlth, Sanjeevani Coll Med Sci, Butwal, Rupandehi, Nepal