Han P, Fletcher CF, Copeland NG, Jenkins NA, Yaremko LM, Michaeli T (Jun 1998). "Assignment of the mouse Pde7A gene to the proximal region of chromosome 3 and of the human PDE7A gene to chromosome 8q13". Genomics. 48 (2): 275–6. doi:10.1006/geno.1997.5168. PMID9521885.
Han P, Fletcher CF, Copeland NG, Jenkins NA, Yaremko LM, Michaeli T (Jun 1998). "Assignment of the mouse Pde7A gene to the proximal region of chromosome 3 and of the human PDE7A gene to chromosome 8q13". Genomics. 48 (2): 275–6. doi:10.1006/geno.1997.5168. PMID9521885.