Hello!

Cardio is one of the most expensive domain, after that the most demanding specialization is gynecology. More you earn greater is the risky domain you would be working when it comes to medical field.

The most demanding sectors are:

1) Orthopedics

2) Gynecology

3) Obstetrics

4) Dermatology

5) Pediatrics

These are some of the most demanding and high earning specializations.

ALL THE BEST. Hope the answer was helpful.

Thank You