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Library of Congress Subject Areas
(2051)
A General Works
(5)
AC Collections. Series. Collected works
(3)
AI Indexes (General)
(1)
AS Academies and learned societies (General)
(1)
H Social Sciences
(8)
H Social Sciences (General)
(2)
HA Statistics
(1)
HB Economic Theory
(1)
HC Economic History and Conditions
(1)
HM Sociology
(1)
HN Social history and conditions. Social problems. Social reform
(1)
HQ The family. Marriage. Woman
(2)
L Education
(15)
L Education (General)
(14)
LB Theory and practice of education
(1)
LC Special aspects of education
(2)
P Language and Literature
(1)
PS American literature
(1)
Q Science
(17)
Q Science (General)
(12)
QD Chemistry
(1)
QH Natural history
(1)
QH301 Biology
(1)
QM Human anatomy
(1)
QP Physiology
(1)
QR Microbiology
(2)
R Medicine
(2022)
R Medicine (General)
(1686)
RA Public aspects of medicine
(101)
RA0421 Public health. Hygiene. Preventive Medicine
(87)
RA1001 Forensic Medicine. Medical jurisprudence. Legal medicine
(1)
RB Pathology
(2)
RC Internal medicine
(5)
RC0254 Neoplasms. Tumors. Oncology (including Cancer)
(3)
RD Surgery
(4)
RG Gynecology and obstetrics
(261)
RJ Pediatrics
(6)
RJ101 Child Health. Child health services
(5)
RL Dermatology
(1)
RM Therapeutics. Pharmacology
(7)
RS Pharmacy and materia medica
(26)
RT Nursing
(268)
RV Botanic, Thomsonian, and eclectic medicine
(3)
RX Homeopathy
(2)
RZ Other systems of medicine
(17)
S Agriculture
(3)
S Agriculture (General)
(1)
SB Plant culture
(1)
SD Forestry
(1)
T Technology
(10)
T Technology (General)
(1)
TD Environmental technology. Sanitary engineering
(9)