1. Ackerman, G. A.: Ultrastructure and cytochemistry of the developing neutrophil. Lab. Invest. 19; 290-302, 1968.
2. Attström, R.: Presence of leukocytes in crevices of healthy and chronically inflamed gingivae. J. Periodont. Res. 5; 42-47, 1970.
3. Bainton, D. F. and Farquhar, M. G.: Differences in enzyme content of azurophil and specific granules of polymorphonuclear leukocytes. II. Cytochemistry and electron microscopy of bone marrow cells. J. Cell Biol. 39; 299-317, 1968.
4. Bainton, D. F., Ullyot, J. L. and Farquhar, M. G.: The development of neutrophilic polymorphonuclear leukocytes in human bone marrow. J. Exp. Med. 134; 907-934, 1971.
5. Bentfeld, M. E., Nichols, B. A. and Bainton, D. F.: Ultrastructural localization of peroxidase in leukocytes of rat bone marrow and blood. Anat. Res. 187; 219-240, 1977.