First break all the rules

GENERAL ELECTRIC'S health-care laboratory in Bangalore contains some of the company's most sophisticated products—from giant body scanners that can accommodate the bulkiest American football players to state-of-the-art intensive-care units that can nurse the tiniest premature babies. But the device that has captured the heart of the centre's boss, Ashish Shah, is much less fancy: a hand-held electrocardiogram (ECG) called the Mac 400.