The epidemic disparity of PTB between Zhaotong and other cities in Yunnan appears to follow an increasing trend yearly.
← all excerpts
Spatial-temporal analysis of pulmonary tuberculosis in the northeast of the Yunnan province, People's Republic of China.
2
—
—
The sentences
There was an evident trend variation; with the maximum number of PTB cases registered in the spring each year and a volatile declining trend the following summer and autumn, and then a minimum number of cases were recorded in winter.