[On hygienic assessment of working conditions involving technological use of ultrasonics].
D004781:Environmental Exposure; D006801:Humans; D009784:Occupational Diseases / Q000517:prevention & control*; D009787:Occupational Medicine; D014465:Ultrasonics
O gigienicheskoĭ otsenke usloviĭ truda pri tekhnologicheskom primenenii ul'trazvuka.