1. 手足病医生   nephrologist   urologist   chiropodist   dentist   Hint Half-n-half Clue   2. 产科医生   orthodontist   urologist   obstetrician   physician   Half-n-half Clue   3. 癌症医师   neurologist   physician   dietician   oncologist   Half-n-half Clue   4. 老人学家   chiropodist   gerontologist   dietician   nephrologist   Half-n-half Clue   5. 按摩医生   pediatrician, paediatrician   gerontologist   chiropractor   neurologist   Half-n-half Clue   6. 生理治疗师   nephrologist   physiotherapist   chiropractor   pediatrician, paediatrician   Half-n-half Clue   7. 放射学家   orthodontist   radiologist   dietician   orthopedist, orthopaedist   Half-n-half Clue