Ehrengut W
Fortschr Med. 1980 Nov 6;98(41):1591-4.
A comparison is made between the admissions of children with whooping-cough in Hamburg (with a low pertussis immunization rate) and München (with a higher rate of vaccinated children).
对汉堡(百日咳免疫接种率较低)和慕尼黑(儿童疫苗接种率较高)两地患百日咳儿童的入院情况进行了比较。