Specialties:
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#cv - cardiovascular - heart, blood vessels
Cardiologist, vascular surgery

#derm - skin: wounds, rashes 
Dermatologist

#dental - teeth, gums, mouth
Dentist, oral surgeon

#eye - eyes and vision
Ophthalmologist, optometrist

#ent 
Ear, nose, throat

#gi- digestive and biliary tract
Gastroenterologist

#gu - genitourinary
Urologist

#neuro - brain and nervous system
Neurologist and neurosurgeon

#obgyn - female reproductive health
Obstetrician, gynecologist, midwife

#onc - cancer and blood disorders
Hematology, oncology, radiation oncology

#ortho - bones, muscle, tendons, cartilage, sprains, fractures
Orthopedics

#pall - Advance directives, goals of care, DNR
Palliative care

#psych
Mental and emotional health

#pulm - Lungs and breathing
Pulmonologist

#renal - kidneys, fluids, electrolytes
Nephrologist

#rad - Xrays, CT scans, ultrasounds, MRIs, etc. 
Radiologist