共 50 条
- [21] A COMPARISON BY SAMPLING METHOD OF POLIO ANTIBODIES IN POLIO-FREE AND POLIO-STRICKEN AREAS ANNALES MEDICINAE EXPERIMENTALIS ET BIOLOGIAE FENNIAE, 1962, 40 : 5 - &
- [26] Challenges of Maintaining Polio-free Status of the European Region JOURNAL OF INFECTIOUS DISEASES, 2014, 210 : S194 - S207
- [27] Assessing and Mitigating the Risks for Polio Outbreaks in Polio-Free Countries - Africa, 2013-2014 MMWR-MORBIDITY AND MORTALITY WEEKLY REPORT, 2014, 63 (34): : 756 - 761
- [29] Ten years polio-free: anniversary in the World Health Organization European Region EUROSURVEILLANCE, 2012, 17 (17): : 42 - 42