@article{:/content/10.2807/esm.12.09.00728-en, author = "Johansen, K and Lopalco, P L", title = "Passive immunity against measles in infants: is there a need for policy changes in the European vaccination schedules?", journal = "Eurosurveillance", year = "2007", volume = "12", number = "9", eid = 728, pages = "3-4", url = "https://www.eurosurveillance.org/content/10.2807/esm.12.09.00728-en", doi = "https://doi.org/10.2807/esm.12.09.00728-en" }