Dentists:

Dentist Job Description, Career as a Dentist, Salary, Employment – Definition and Nature of the Work, Education and Training Requirements, Getting the Job

http://careers.stateuniversity.com/pages/472/Dentist.html

Dentists – Bureau of Labor Statistics – Occupational Handbook:

http://www.bls.gov/oco/ocos072.htm

American Dental Association:

http://www.ada.org/

Links for how to become a dentist:

http://www.google.com/search?hl=en&q=how+to+become+a+dentist

Physicians and Surgeons – Bureau of Labor Statistics – Occupational Handbook:

http://www.bls.gov/oco/ocos074.htm

Salaries – Payscale – Physicians and Surgeons:http://www.payscale.com/Job_Description/Physicians_and_Surgeons%2c_All_Other

American Society of Anesthesiologists – Career Overview:

http://www.asahq.org/career/gradeschool.htm

Anesthesiologist Job Description, Career as a Anesthesiologist, Salary, Employment – Definition and Nature of the Work, Education and Training Requirements, Getting the Job:

http://careers.stateuniversity.com/pages/467/Anesthesiologist.html

More info and links:

http://mdsalaries.blogspot.com/2006/06/anesthesia-anesthesiologist-salaries.html

Radiologists:

Careers in Radiology:

http://www.radiologyinfo.org/en/careers/index.cfm?pg=diagcareer&bhcp=1

Association of American Medical Colleges – Careers in Medicine – Radiology:

http://www.aamc.org/students/cim/pub_radiology.htm

What is Radiology:

http://rad.usuhs.mil/rad/home/whatis.html

Payscale – Salary Survey Report for Job: Radiologist

http://www.payscale.com/research/US/Job=Radiologist/Salary

Links for how to become a radiologist:

http://www.google.com/search?hl=en&q=how+to+become+a+radiologist&btnG=Google+Search

I listed the main page as my source.

Here is the Radiologist page for example.

http://www.bls.gov/oco/ocos105.htm

Good Luck!