Modern Indications for Tracheotomy in Cases of Acute and Chronic Asphyxia / Cortisone in Clinical Otorhinolaryngology Anatomo-Clinical and Surgical Generalities / Zur Morphologie und Physiologie des Aquaeductus Cochlea / ©¿ber Die Fibrinogenbehandlung der Tonsillektomie-NachblutungenAdvances in Oto-Rhino-Laryngology / Fortschritte der Hals-Nasen-Ohrenheilkunde / Progr©·s en Oto-Rhino-Laryngologie, Vol. 15 - R©ơedi, L. (Bibliotheca Oto-Rhino-Laryngologica Ser.)