1. Rubella and congenital rubella syndrome: Global update;Robertson;Rev Panam Salud Publica,2003
2. Control of Rubella and Congenital Rubella Syndrome (CRS) in developing countries, part 1: Burden of disease from CRS;Cutts;Bull World Health Organ,1997
3. Seroprevalence and incidence of Rubella in and around Delhi (1988-2002);Gandhoke;Indian J Med Microbiol,2005
4. Control of Rubella and Congenital Rubella Syndrome (CRS) in developing countries, part 2: Vaccination against Rubella;Robertson;Bull World Health Organ,1997
5. WHO position paper;vaccines;Weekly Epidemiological Record, WHO,2000