Vanhalst K، Kools P، Vanden Eynde E، van Roy F (أبريل 2001). "The human and murine protocadherin-beta one-exon gene families show high evolutionary conservation, despite the difference in gene number". FEBS Lett. ج. 495 ع. 1–2: 120–5. DOI:10.1016/S0014-5793(01)02372-9. PMID:11322959.
Vanhalst K، Kools P، Vanden Eynde E، van Roy F (أبريل 2001). "The human and murine protocadherin-beta one-exon gene families show high evolutionary conservation, despite the difference in gene number". FEBS Lett. ج. 495 ع. 1–2: 120–5. DOI:10.1016/S0014-5793(01)02372-9. PMID:11322959.