Randomized trial of use of incentive to increase the response rate to a mailed survey

Author name used in this publication: Tong M. F. ChanAuthor name used in this publication: Sonny H. M. TseAuthor name used in this publication: Mary C. DayAuthor name used in this publication: Edmond T. F. TongAuthor name used in this publication: Lorna K. P. Suen2003-2004 > Academic research: refereed > Publication in refereed journalVersion of RecordPublishe

Foot massage apparatus

US7494476; US7494476 B2; US7494476B2; US7,494,476; US 7,494,476 B2; 7494476; Application No. 11/244,254Inventor name used in this publication: Joanne W. Y. ChungInventor name used in this publication: Sonny H. M. TseUSVersion of Recor