Chronic general periodontitis: "Periodontal disease" (Pyorrhoea alveolaris) / by J.F. Colyer.

  • Colyer, Frank, 1866-1954.
Date:
1916

Licence: Public Domain Mark

Credit: Chronic general periodontitis: "Periodontal disease" (Pyorrhoea alveolaris) / by J.F. Colyer. Source: Wellcome Collection.

    7/126