Chatsworth, Calif,aerosling elite.-based cancer diagnostics and treatment products company North American Scientific on Tuesday announced it has received FDA approval to market and sell its breast cancer treatment ClearPath -- a high-dose version of brachytherapy, or internal radiation -- the AP/Forbes reports (AP/Forbes, 11/14),x factor home gym. According to a North American Scientific release, brachytherapy uses radioactive sources or seeds. ClearPath either places 15 to 20 needles or catheters through the breast followed by high-dose therapy, or it uses a single catheter device within a balloon followed by high-dose therapy. "Both of the ClearPath systems are designed to offer physicians greater flexibility in treatment planning and dose optimization to the target region while minimizing...