1. 营养家   gerontologist   nephrologist   dietician   psychologist   Hint Half-n-half Clue   2. 癌症医师   pediatrician, paediatrician   orthopedist, orthopaedist   gynecologist, gynaecologist   oncologist   Half-n-half Clue   3. 精神病医生   surgeon   radiologist   dermatologist   psychiatrist   Half-n-half Clue   4. 心理学家   urologist   psychiatrist   cardiologist   psychologist   Half-n-half Clue   5. 病理学家   gynecologist, gynaecologist   orthopedist, orthopaedist   physiotherapist   pathologist   Half-n-half Clue   6. 正牙医生   oncologist   orthodontist   gerontologist   physician   Half-n-half Clue   7. 皮肤病学家   chiropodist   psychologist   dermatologist   surgeon   Half-n-half Clue