Wolfe-Coote S A, Louw J, du Toit D F
Research Institute for Medical Biophysics, South African Medical Research Council, Tygerberg.
Experientia. 1988 Mar 15;44(3):238-40. doi: 10.1007/BF01941720.
Immunocytochemical procedures at ultrastructural and light microscopy level revealed, in the Chacma baboon endocrine pancreas, cells which were immunoreactive for glucagon and pancreatic polypeptide (PP). Some D cells were observed to contain secretory granules with both the appearance and immunoreactivity of A cell secretory granules.