To the Editor.—
Dr Cottrell and colleagues described a microcomputer for clinical application in intensive care units (1982;248:2289). Pocket computers might be more practical for hospitals that do not have resources to buy costly systems. They have been used to calculate derived cardiovascular and pulmonary variables for critically ill trauma patients (J. S. Britten, MD, unpublished observation, 1982). Programs may be designed by physicians from formulas in the critical care literature.1
Hanline M. Pocket Computers in Critical Care. JAMA. 1983;250(16):2109. doi:10.1001/jama.1983.03340160013007
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