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[69] Deutsche Viertelj. f. öffentl. Ges., XLV (1913), 58-59.
[70] Op. cit., pp. 60-62.
[71] Jour. Infect. Dis., XX (1917), 457.
[72] Centralbl. f. Bakt., I Orig., LIII (1910), 377.
[73] Cor.-Bl. f. schweiz. Aerzte, XLII (1912), 281 and 332.
[74] Jour. Hyg., XII (1912), 1.