Authors: James M Heilman; Eckhard Kemmann; Michael Bonert; Anwesh Chatterjee; Brent Ragar; Graham M Beards; David J Iberri; Matthew Harvey; Brendan Thomas; Wouter Stomp; Michael F Martone; Daniel J Lodge; Andrea Vondracek; Jacob F de Wolff; Casimir Liber; Samir C Grover; Tim J Vickers; Bertalan Meskó; Michaël R Laurent Journal: J Med Internet Res Date: 2011-01-31 Impact factor: 5.428