A method of using an Excel spreadsheet is described which allows dose and erythema index values to be entered, a sigmoid curve fitted to the data, and a report generated. Summary statistics may be derived from the fitted curve. Data and statistics may be saved in a simple database. It is suitable for implementation by people who have no previous programming experience, although basic familiarity with spreadsheets is assumed.
Davidson AW. Calculations of erythema dose-response curves using a spreadsheet. Photobiology, Photoimmunology and Photomedicine, 15, 104-108.
Adrian Davidson, RVI Unit, Newcastle upon Tyne. Tel: +44 (0)191-233-6161.
Regional Medical Physics Department, Newcastle General Hospital, Newcastle upon Tyne, NE4 6BE, UK.
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