, Marieke J. van der Werf, Betty K.Y. Au, Dang D. Anh, Kai M. Kam, H. Rogier van Doorn, Martien W. Borgdorff, and Dick van Soolingen
Figure 2. Proportion of atypical Beijing strains among persons with Mycobacterium tuberculosis Beijing clade strains in Vietnam, the Netherlands, and Hong Kong, by patient age. The data point of the >75-year age category from the data from Vietnam was omitted because the group contained only 1 patient.