Materia
R Medicine (General)
RA Public aspects of medicine
142
RA0421 Public health. Hygiene. Preventive Medicine
139
RT Nursing
23
RZ Other systems of medicine
17
HV Social pathology. Social and public welfare
12
RB Pathology
12
RC Internal medicine
11
QR355 Virology
10
RK Dentistry
10
BF Psychology
9
HN Social history and conditions. Social problems. Social reform
8
HM Sociology
6
RM Therapeutics. Pharmacology
6
L Education (General)
5
LB2300 Higher Education
5
H Social Sciences (General)
4
HQ The family. Marriage. Woman
4
Q Science (General)
4
RG Gynecology and obstetrics
4
RJ101 Child Health. Child health services
4
K Law (General)
3
QR Microbiology
3
RA1001 Forensic Medicine. Medical jurisprudence. Legal medicine
3
HA Statistics
2
HD28 Management. Industrial Management
2
HJ Public Finance
2
LB1603 Secondary Education. High schools
2
QP Physiology
2
RC0254 Neoplasms. Tumors. Oncology (including Cancer)
2
RL Dermatology
2
RS Pharmacy and materia medica
2
GT Manners and customs
1
J General legislative and executive papers
1
JA Political science (General)
1
JK Political institutions (United States)
1
LC5201 Education extension. Adult education. Continuing education
1
QH301 Biology
1
QR180 Immunology
1
RC1200 Sports Medicine
1
SF Animal culture
1