A top Chinese oncologist and physician-scientist, Cheng Ying, has died suddenly aged 62, according to multiple sources. There has been no official statement about the doctor’s death, and the cause of death is not known. Cheng was director of the Jilin Cancer Hospital and according to their outpatient records, she last appeared at the specialist team clinic she led on the morning of July 2. Subsequently, her appointment schedule was removed from the hospital’s outpatient information sheet, and...