- Mapping of gene loci for nephronophthisis type 4 and Senior-Løken syndrome, to chromosome 1p36. Schuermann, M.J., Otto, E., Becker, A., Saar, K., Rüschendorf, F., Polak, B.C., Ala-Mello, S., Hoefele, J., Wiedensohler, A., Haller, M., Omran, H., Nürnberg, P., Hildebrandt, F. Am. J. Hum. Genet. (2002)