Tordai H, Bányai L, Patthy L (November 1999). "The PAN module: the N-terminal domains of plasminogen and hepatocyte growth factor are homologous with the apple domains of the prekallikrein family and with a novel domain found in numerous nematode proteins". FEBS Lett.461 (1-2): 63–7. PMID10561497. doi:10.1016/s0014-5793(99)01416-7.
Tordai H, Bányai L, Patthy L (November 1999). "The PAN module: the N-terminal domains of plasminogen and hepatocyte growth factor are homologous with the apple domains of the prekallikrein family and with a novel domain found in numerous nematode proteins". FEBS Lett.461 (1-2): 63–7. PMID10561497. doi:10.1016/s0014-5793(99)01416-7.