TY - RPRT TI - Negative pressure ventilation vs external high-frequency oscillation during rigid bronchoscopy. A controlled randomized trial. AU - G Natalini AU - S Cavaliere AU - V Seramondi AU - P Foccoli AU - M Vitacca AU - N Ambrosino AU - A Candiani PY - 2000 DO - 10.1378/chest.118.1.18 UR - https://pubmed.ncbi.nlm.nih.gov/10893353/ ID - 10893353 ER -