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Library of Congress Classification Outline

R

R:  Medicine.
R Medicine–General.
RA Public medicine.
RB Pathology.
RC Internal medicine.
RD Surgery.
RE Ophthalmology.
RF Otorhinolaryngology.
RG Gynecology & obstetrics.
RJ Pediatrics.
RK Dentistry.
RL Dermatology.
RM Therapeutics. Pharmacology.
RS Pharmacy. Materia medica.
RT Nursing.
RV Botanic, Thomsonian, eclectic medicine.
RX Homeopathy.
RZ Other systems of medicine.