Classification
HYG - Occupational medicine, sports medicine
HRD - Dosimetry, radiation protection - medical aspects
20
HDG - Psychology, psychiatry
12
HPT - Toxicology
10
UVA - Environmental chemicals, hazardous materials - comprehensive works
10
YFF - Industrial safety regulations
10
UXL - Radiation protection - general aspects
9
TIF - Industrial ( occupational ) safety
8
HYB - Public health, health politics
7
TIH - Ergonomics, man machine systems
6
YPF - Labour science
6
HCI - Radiation biology, dosimetry
5
YPGE - Human resource planning, human resource management
5
HYE - Environmental health
4
UVWD - Effects of hazardous materials at the workplace
4
YRA - Social studies
4
YRB - Social sciences, sociology
4
CAU - Laboratory and safety engineering in chemistry
3
HYH - Traumatology, emergency medicine, disasters
3
UA - Environment - general
3
UCA - Environmental problems, man and environment - general aspects
3
UVC - Environmental chemicals, hazardous materials - general aspects
3
UXN - Radiation protection in nuclear facilities
3
YFA - Labour legislation
3
YPG - Business management
3
HDE - Neurology - general aspects
2
HJK - Clinical immunology, allergy, immunosuppression
2
HTE - Oncology - general
2
HWB - Urology, venerology, dermatology
2
TEA - Electrical engineering - general
2
TIG - Reliability, safety, quality control
2
UXE - Nuclear radiation effects, radiation hazards
2
YBB - Law - general
2
AMA - Education - general
1
AMAB - Industrial training, further education
1
FGJ - Laser and electron beam processing
1
FGN - Nanotechnology
1
HAA - Medicine - reference books
1
HAE - Popular medicine
1
HBA - Medical physics
1
HBH - Anatomy and cytology of man
1
HBX - Experimental medicine, laboratory animals
1
HCE - Biomedical engineering - general aspects
1
HCN - Nuclear medicine
1
HEE - Human physiology - general aspects
1
HTP - Oncology - diagnostics
1
HTW - Oncology - therapeutics
1
HVA - Internal medicine - comprehensive works
1
HWT - Anaestesiology
1
LKT - Biochemistry of vitamins and hormones
1
more ...