Observation:Prid:Pt:BAL:Nom:Methenamine silver nitrate stain
observation:prid:pt:bal:nom:methenamine silver nitrate stain
Microscopic observation [Identifier] in Bronchoalveolar lavage by Methenamine silver nitrate stain
microscopic observation [identifier] in bronchoalveolar lavage by methenamine silver nitrate stain