Principles of optimum bronchoalveolar lavage (BAL) preparation for cytoimmunological examinations in interstitial lung diseases

Piotr Kopiński, Zbigniew Chłap, Józef Owsiński, Jerzy Soja, Zbigniew Stankiewicz, Magdalena Biernat-Silczuk, Ewa Czarnobilska, Piotr Czunko