1. The Röntgen rays in thoracic disease Author(s): Williams, Francis H. (Francis Henry), 1852-1936, author Publication: [Philadelphia] : [publisher not identified], [1897] Subject(s): RadiographyThoracic Diseases -- diagnostic imagingRadiography -- methodsX-Rays
2. The roentgen rays in thoracic diseases Author(s): Williams, Francis H. (Francis Henry), 1852-1936, author Publication: [Boston?] : [publisher not identified], [1897?] Subject(s): RadiographyThoracic Diseases -- diagnostic imaging
