Okuda R, Mori C, Nishioka K
Jpn Circ J. 1979 May;43(5):424-6. doi: 10.1253/jcj.43.424.
The number of patients with the first attack of rheumatic fever reached a peak in 1960, decreased remarkably until 1968, then has remained unchanged for the last nine years. Approximately 10% of rheumatic patients still develop recurrences.
风湿热首次发作的患者数量在1960年达到峰值，到1968年显著下降，然后在过去九年一直保持不变。约10%的风湿热患者仍会复发。
