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Efficacy evaluation of DAP® diffuser versus placebo diffuser for guide dogs completing the final stage of training program leading to graduation as a working guide dog with a visually impaired person
Bibliographical notice: Bacteriology: a study of Microörganisms and their relation to human welfare, discussing the history of Bacteriology, the nature of Microörganisms and their significance in connection with pathology, hygiene, agriculture, and the industries. By HW Conn and Harold J. Conn. Baltimore: Williams and Wilkins Company, 1923. 8vo. Pp. 441