[ROLE OF OTOLARYNGOLOGY IN THE STUDY OF THE EFFECT OF THE EXTERNAL ENVIRONMENT ON THE RESPIRATORY TRACT].
D003604:Czechoslovakia; D004777:Environment; D006801:Humans; D010036:Otolaryngology; D012106:Research; D012137:Respiratory System
CZECHOSLOVAKIA; ENVIRONMENT; OTORHINOLARYNGOLOGY; RESPIRATORY SYSTEM
UKOLY OTOLARYNGOLOGIE P RI STUDIU VLIVU ZEVN'IHO PROST RED'I NA D'YCHAC'I CESTY.