We begin our study of oscillations by examining the general definition of an oscillating system. From this definition we can examine the special case of harmonic oscillation, and derive the motion of a harmonic system.
Different types of health professionals can help treat a thyroid problem. 1  Family medicine doctor or general practitioner. 2  Internist. 3  Pediatrician. 4  Nurse practitioner.
Updated July 11, 2016. A rheumatologist is a medical doctor who specializes in arthritis and related diseases. Most often, a patient is referred to a rheumatologist by their primary care physician after presenting symptoms of arthritis.