[31]. Fantus: Jour. Am. Med. Assn., 1918, lxxi, 1736.

[32]. Keegan: Jour. Am. Med. Assn., 1918, lxxi, 1051.

[33]. Christian: Jour. Am. Med. Assn., 1918, lxxi, 1565.

[34]. Blanton and Irons: Jour. Am. Med. Assn., 1918, lxxi. 1988.

[35]. Hall, Stone and Simpson: Jour. Am. Med. Assn., 1918, lxxi, 1986.

[36]. Synnott and Clark: Jour. Am. Med. Assn., 1918, lxxi, 1816.

[37]. Friedlander, McCord, Sladen and Wheeler: Jour. Am. Med. Assn., 1918, lxxi, 1652.

[38]. Brem, Bolling and Casper: Jour. Am. Med. Assn., 1918, lxxi, 2138.

[39]. Ely, Lloyd, Hitchcock, and Nickson: Jour. Am. Med. Assn., 1919, lxxii, 24.

[40]. Camp Lewis Pneumonia Unit: Jour. Am. Med. Assn., 1919, lxxii, 268.