Classification
HYG - Occupational medicine, sports medicine
53
UAU - Fire, fire protection, safety at the workplace, prevention of accidents
30
TIF - Industrial ( occupational ) safety
29
YFF - Industrial safety regulations
22
HRD - Dosimetry, radiation protection - medical aspects
19
UXL - Radiation protection - general aspects
14
UVA - Environmental chemicals, hazardous materials - comprehensive works
10
CAU - Laboratory and safety engineering in chemistry
8
TIG - Reliability, safety, quality control
5
YFA - Labour legislation
5
HPT - Toxicology
4
TIH - Ergonomics, man machine systems
4
HCI - Radiation biology, dosimetry
3
HYE - Environmental health
3
UXN - Radiation protection in nuclear facilities
3
HYB - Public health, health politics
2
UXNB - Radiation protection relating to reactor safety, reactor accidents
2
AHN - Media and communication science
1
AMA - Education - general
1
CAV - Chemicals, chemical reagents
1
EFA - Petroleum, natural gas
1
FGN - Nanotechnology
1
FGP - Nanoelectronics
1
FNPE - Nanostructured materials
1
HBA - Medical physics
1
HBM - Medical microbiology, infectious diseases
1
HBX - Experimental medicine, laboratory animals
1
HDG - Psychology, psychiatry
1
HJK - Clinical immunology, allergy, immunosuppression
1
HTE - Oncology - general
1
HWB - Urology, venerology, dermatology
1
LHH - Microbiology - methods
1
LHM - Microbiology - genetics
1
LHW - Bacteria - general aspects
1
LKH - Biochemistry - methods
1
LTE - Biotechnology - general aspects
1
TAB - Engineering sciences - dictionaries
1
TBTE - Laser devices
1
TNO - Nuclear reactor safety
1
UCA - Environmental problems, man and environment - general aspects
1
USG - Waste treatment, waste disposal
1
UXE - Nuclear radiation effects, radiation hazards
1
UXP - Radioactive materials - transport, safety
1
YAE - Law, economy, social affairs - general
1
YPG - Business management
1
YRC - Technology and society
1
YRE - Risk assessment
1