http://www.ncbi.nlm.nih.gov/PubMed/
http://www.ncbi.nlm.nih.gov/genemap99/
http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=gene
http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=OMIM&cmd=Limits
http://www.gdb.org/
http://www.ncbi.nlm.nih.gov/CGAP/
http://nciarray.nci.nih.gov/cards/index.html
http://www.infobiogen.fr/services/chromcancer/