1. Mushin WW, Rendell-Baker L, Thompson PW, Mapleson WW. Automatic ventilation of the lungs. Oxford: Blackwell Scientific; 1980.
2. Dalziel J. On sleep and apparatus for promoting artificial respiration. Br Assoc Adv Sci. 1838;1:127.
3. Sauerbruch F. Zur Pathologie des offenen pneumothorax und die Grundlagen meines Verfahrens zu seiner Ausschaltung. Mitteilungenaus den Grenzgebieten der Medizin und Chirugie. 1904;13:999–1004.
4. Pierson DJ. Noninvasive positive pressure ventilation: history and terminology. Respir Care. 1997;42(4):370–9.
5. Hodes HL. Treatment of respiratory difficulty in poliomyelitis. In: Poliomyelitis: papers and discussions presented at the third international poliomyelitis conference. Philadelphia: Lippincott; 1955. p. 91–113.