[Fluorographic study of the paranasal sinuses using a frontal reflector].
D004867:Equipment Design; D005471:Fluoroscopy / Q000295:instrumentation*; D006801:Humans; D010256:Paranasal Sinuses / Q000000981:diagnostic imaging*; D010779:Photofluorography / Q000295:instrumentation*
Izuchenie fliuorogramm okolonosovykh pazukh s pomoshch'iu lobnogo reflektora.