Refernces:
Introduction-
en.wikipedia.org/wiki/Cervical_rib
commons.wikimedia,org-Diagram
associated conditions-
health-pic.com
thoracic outlet syndrome-
http://www.nismat.org/ptcor/thoracic_outlet/
http://www.tree .com
signs and symptoms-
diagnosis-
www.jultrasoundmed.org/content/27/7/1083.full.pdf
jama.jamanetwork.com/article.aspx?articleid=298903
Treatment-
http://www.patient.co.uk/doctor/Cervical-Ribs-and-Thoracic-Outlet-Syndrome.htm