On the internal administration of nitrate of silver, and on the occurrence of a blue line upon the gums as the earliest sign of argyria / by William Pepper.

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On the internal administration of nitrate of silver, and on the occurrence of a blue line upon the gums as the earliest sign of argyria / by William Pepper. Public Domain Mark. Source: Wellcome Collection.

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This material has been provided by the Royal College of Physicians of Edinburgh. The original may be consulted at the Royal College of Physicians of Edinburgh.