Factbox: Europe's lead over U.S. on heart device approvals

(Reuters) - U.S. cardiologists have become increasingly frustrated by lengthy delays in approvals of medical technology used in heart procedures, often coming three years or more after European approvals. The following are some heart-related devic...

Source: http://health.yahoo.net/news/s/nm/factbox-europe-s-lead-over-u-s-on-heart-device-approvals

explained here as explained here resource source