National Centre for Biotechnology Information: http://www.ncbi.nlm.nih.gov

Online Mendelian Inheritance in Man: http://www.omim.org

PUBMED: http://www.ncbi.nlm.nih.gov/pubmed

Ciliopathy Alliance: http://www.ciliopathyalliance.org

Rare disease: http://rarediseases.org

Rare Disease UK: https://www.raredisease.org.uk

Orphanet: http://www.orpha.net/consor/cgi-bin/index.php

UCSC Genome Browser: https://genome.ucsc.edu