On some of the mental affections of childhood and youth : being the Lettsomian lectures delivered before the Medical Society of London in 1887 : together with other papers / by J. Langdon Down.

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On some of the mental affections of childhood and youth : being the Lettsomian lectures delivered before the Medical Society of London in 1887 : together with other papers / by J. Langdon Down. Public Domain Mark. Source: Wellcome Collection.

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This material has been provided by the Francis A. Countway Library of Medicine, through the Medical Heritage Library. The original may be consulted at the Francis A. Countway Library of Medicine, Harvard Medical School.