1. Rheumatologe   orthopedist, orthopaedist   rheumatologist   dermatologist   nephrologist   Hint Half-n-half Clue   2. Ernährungswissenschaftler   chiropractor   rheumatologist   dietician   gerontologist   Half-n-half Clue   3. Psychologe   gerontologist   urologist   psychologist   gynecologist, gynaecologist   Half-n-half Clue   4. Neurologe   gerontologist   rheumatologist   neurologist   pediatrician, paediatrician   Half-n-half Clue   5. Kieferorthopäde   psychologist   orthodontist   nephrologist   oncologist   Half-n-half Clue   6. Geburtshelfer   surgeon   chiropractor   physician   obstetrician   Half-n-half Clue   7. Orthopäde   cardiologist   obstetrician   orthopedist, orthopaedist   urologist   Half-n-half Clue