Glowacki, J. & O'Sullivan, J. & Miller, M. & Wilkie, D.W. & Deftos, L.J. (1985)
Calcitonin produces hypercalcemia in leopard sharks. Endocrinology, 116(2), 827–829
DOI: 10.1210/endo-116-2-827

Lee, A.K. & Van Beuzekom, M. & Glowacki, J. & Langer, R. (1984)
Inhibitors, enzymes and growth factors from shark cartilage. Comparative Biochemistry and Physiology – Part B, Comparative Biochemistry, 78(3), 609–616
DOI: 10.1016/0305-0491(84)90106-8