- Expression and molecular characterization of the growth hormone receptor in canine mammary tissue and mammary tumors. van Garderen, E., van der Poel, H.J., Swennenhuis, J.F., Wissink, E.H., Rutteman, G.R., Hellmén, E., Mol, J.A., Schalken, J.A. Endocrinology (1999)