Singh, PK2020-04-102020-04-102018-01Singh PK. Collaborating centres: Rediscovering an extended arm of World Health Organization. Indian Journal of Medical Research. 2018 Jan; 147(1): 11-130971-59160975-9174http://imsear.searo.who.int/handle/123456789/195446Journal ArticleIndiaRegional Director, WHO South-East Asia Region, World Health House, Indraprastha Estate, Mahatma Gandhi Marg, New Delhi 110 002, India