28 results
- Books
Poliomyelitis in all its aspects / by John Ruhräh and Erwin E. Mayer.
Ruhräh, John, 1872-1935.Date: 1917- Books
- Online
Diet in health and disease / by Julius Friedenwald and John Ruhräh.
Friedenwald, Julius, 1866-1941.Date: 1905 [©1904]- Books
- Online
A manual of the diseases of infants and children.
Ruhräh, John, 1872-1935.Date: 1914