Pressure from insurers such as Aetna Inc. and WellPoint Inc. and the need to cut hospital costs are speeding a move by doctors to computer recordkeeping, said Glen Tullman, chief executive officer of Allscripts-Misys Healthcare Solutions Inc. Allscripts has seen a fivefold increase in the number of U.S. doctors using its electronic prescribing software, part of a "dramatic acceleration" in the use of online health records, said Tullman.