1. guan [jie;jie] yan yi shi   oncologist   pediatrician, paediatrician   urologist   rheumatologist   Hint Half-n-half Clue   2. wai ke yi sheng   orthopedist, orthopaedist   surgeon   neurologist   nephrologist   Half-n-half Clue   3. shen zang bing xue [jia;jia;jie]   cardiologist   orthopedist, orthopaedist   psychologist   nephrologist   Half-n-half Clue   4. [zheng;zheng] ya yi sheng   orthodontist   dentist   pathologist   urologist   Half-n-half Clue   5. chan ke yi sheng   obstetrician   pediatrician, paediatrician   pathologist   chiropodist   Half-n-half Clue   6. lao ren xue [jia;jia;jie]   chiropodist   orthopedist, orthopaedist   dentist   gerontologist   Half-n-half Clue   7. er ke yi sheng ，er ke yi sheng   pediatrician, paediatrician   orthodontist   urologist   cardiologist   Half-n-half Clue