title: [The research of the treatment position influenced upon operators' health especially the fluctuation of blood gas and biochemics (author's transl)].
mesh_terms: D001774:Blood Chemical Analysis; D002245:Carbon Dioxide / Q000097:blood; D003815:Dentists; D006801:Humans; D006863:Hydrogen-Ion Concentration; D009784:Occupational Diseases / Q000097:blood; D010100:Oxygen / Q000097:blood*; D011187:Posture
chemical_list: D002245:Carbon Dioxide; D010100:Oxygen