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[31] Chirurg. Operat., 1907, p. 631.
[32] Bergmann, E. von, Sys. Pract. Surg., vol. ii, p. 265.
[33] Brit. Med. Journ., 1899, vol. i, p. 199, ‘On the Value of the Treatment of Diphtheria by Antitoxin.’
[34] Trans. Amer. Laryng. Assoc., 1906, p. 264, ‘Tumours of the Trachea.’
[35] Bergmann, E. von. Sys. Pract. Surg., vol. ii, p. 249.
[36] Keen’s Surgery, 1908, p. 510.
[37] New York Med. Journ., 1885, vol. xlii, p. 145.
[38] Text Book of Surgery, 1900, vol. ii, p. 625.
[39] Edin. Med. Journ., 1902, p. 235, ‘Observations on Intubation of the Larynx.’