Advanced Transducer Services Inc (ATS), St Louis, offers complete ultrasound systems configured for cardiac, OB/GYN, vascular, and shared service. All brands are available, including Acuson, ATL, GE, HP, Siemens, Toshiba, and others. The company also offers transducer repairs, circuit boards and system parts, and imaging peripherals such as printers, VCRs, and disposables. (800) 214-1813; www.atultrasound.com .