Subclass R Medicine (General)

Subclass RA Public aspects of medicine

Subclass RB Pathology

Subclass RC Internal medicine

Subclass RD Surgery

Subclass RE Ophthalmology

Subclass RF Otorhinolaryngology

Subclass RG Gynecology and obstetrics

Subclass RJ Pediatrics

Subclass RK Dentistry

Subclass RL Dermatology

Subclass RM Therapeutics. Pharmacology

Subclass RS Pharmacy and materia medica

Subclass RT Nursing

Subclass RV Botanic, Thomsonian, and eclectic medicine

Subclass RX Homeopathy

Subclass RZ Other systems of medicine