Acknowledgement
The authors thank the patients, their families, and the study
investigator who took part in this study. In addition to the authors,
the following investigators participated in the study: Jean-Jacques
Barbeau, Pierre Bélanger, Caroline Champagne, Benoit Deschamps, Lief
Destrade Sosa, Martine Gobeil, Marie-Christine Godin, Geneviève Ostiguy,
Idania Teresa Garcia Del Sol, François Saint-Maurice, Luc Tremblay,
Susan Mcvety and Isabelle Boisclair. The author also thanks Jean
Couture, Marie-Eve Coulombe and Amelie Racicot for the statistical
analysis of the data.