Courtney, Theodore K. MS; Matz, Simon MS; Webster, Barbara S. BSPT, PA-C
From the Liberty Mutual Research Center for Safety and Health (Mr Courtney, Mr Matz) and the Liberty Mutual Center for Disability Research (Ms Webster), Hopkinton, Massachusetts.
Address correspondence to: Theodore K. Courtney, MS, Liberty Mutual Research Center for Safety and Health, 71 Frankland Road, Hopkinton, MA 01748; e-mail: [email protected]
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