Bringing electronic patient records into health professional education: towards an integrative framework.

PCT No. PCT/JP97/01401 Sec. 371 Date Aug. 4, 1998 Sec. 102(e) Date Aug. 4, 1998 PCT Filed Apr. 23, 1997 PCT Pub. No. WO98/30950 PCT Pub. Date Jul. 16, 1998Voltage obtained by dividing the voltage of an external power source (101) by means of resistors (108, 109) is supplied to the gate of a first FET (107) that is interposed between two series-connected built-in batteries (103, 104). When the voltage at a predetermined level or above is supplied from the external power source (101), the first FET (107) is turned off, a second FET (110), which is provided between the built-in batteries (103, 104) and a load (113), is also turned off, and the voltage is supplied to the load (113) only from the external power source (101).