1. Pierre Adolphe Piorry (1794-1879): pioneer of percussion and pleximetry;Sakula;Thorax,1979
2. The Hemocytometer and its Impact on Progressive Era Medicine;Davis,1995
3. Cell Growth and Cell Function;Caspersson,1950
4. A device for counting small particles suspended in a fluid through a tube;Crosland-Taylor;Nature,1953
5. Means for Counting Particles Suspended in a Fluid;Coulter,1953