See;
http://www.kidneybuzz.com/mechanism-to-reduce-pain-and-infiltrations-for-chronic-kidney-disease-patients-on-hemodialysis/?rq=vein
See;
http://www.kidneybuzz.com/mechanism-to-reduce-pain-and-infiltrations-for-chronic-kidney-disease-patients-on-hemodialysis/?rq=vein