1998, famous artist Mr. Shiji Zhang suffered from BPH and acute retention of urine,  professor Yang based on the theory that free the defecation first and free urination, the catheter was pulled out after took the medicines for one week, and BPH had been cured after 100 days.  He drew a picture" eagle spreads wings" for  appreciation. (see the middle picture)

1999, the commissar of pointsman bureau, the famous calligrapher Mr. Suobao Huang suffered from BPH 1 level, he took the medicines prosfessor Yang invented for 40 days, the hyperplastic prostate was reduced the illness was cured. He wrote the word for thanksgiving.