Progress and challenges in measles and rubella elimination in the WHO European Region. - Datta, Siddhartha Sankar; O'Connor, Patrick Michael; Jankovic, Dragan; Muscat, Mark; Ben Mamou, Myriam Corrine; Singh, Simarjit; Kaloumenos, Theodoros; Reef, Susan; Papania, Mark; Butler, Robb (Vaccine, 2018)