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62. Mulder. J. prakt. Chem., 1838, 15: 280.
63. ——. Poggendorff's Ann. Physik Chem., 1838, 43: 180.
64. Neubauer. Arch. Exper. Path. Pharm., 1901, 46: 133.
65. Noe. Arch. Int. Pharm. Ther., 1904, 12: 160.
66. Ophüls. Proc. Soc. exper. biol. med., 1911, 8: 75.
67. Oudry. Nouvelle Bibliothek Médicale, 1827; Geiger's Magazin Pharm., 1827, 19: 49.
68. Parisot. Diss. Paris, 1890.
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