Westermark , G. T., D. F. Steiner, S. Gebre-Medhin, U. Engström, and P. Westermark. “Pro Islet Amyloid Polypeptide (ProIAPP) Immunoreactivity in the Islets of Langerhans”. Upsala Journal of Medical Sciences, vol. 105, no. 2, July 2000, pp. 97-106, doi:10.1517/03009734000000057.