Emergency intubation with the combitube®: Comparison with the endotracheal airwayThomas Staudinger, Michael Frass, Dieter Fink et al.|Annals of Emergency Medicine|1993Cited by 93
Closed suctioning system reduces cross-contamination between bronchial system and gastric juices.Werner Rabitsch, Michael Frass, Wolfgang J. Köstler et al.|PubMed|2004Cited by 59
Clinical Evaluation of a New Visualized Endotracheal Tube (VETT) Michael Frass, Andranik Ovassapian, Michael Hüpfl et al.|Anesthesiology|1997Cited by 12