1. yi shi   physician   obstetrician   cardiologist   gynecologist, gynaecologist   Hint Half-n-half Clue   2. wai ke yi sheng   orthopedist, orthopaedist   obstetrician   surgeon   psychologist   Half-n-half Clue   3. lao ren xue [jia;jia;jie]   chiropodist   orthopedist, orthopaedist   gerontologist   chiropractor   Half-n-half Clue   4. chan ke yi sheng   physician   neurologist   obstetrician   gerontologist   Half-n-half Clue   5. π fu bing xue [jia;jia;jie]   neurologist   dermatologist   obstetrician   orthodontist   Half-n-half Clue   6. shen zang bing xue [jia;jia;jie]   rheumatologist   orthodontist   chiropodist   nephrologist   Half-n-half Clue   7. shen [jing;jing] xue [jia;jia;jie]   neurologist   rheumatologist   cardiologist   pathologist   Half-n-half Clue