In the Abstract, the link to the trial registration is incorrect. The correct link is: https://clinicaltrials.gov/ct2/show/NCT01635218. The publisher apologizes for the error.
Authors: Emma Del Carmen Macías-Cortés; Lidia Llanes-González; Leopoldo Aguilar-Faisal; Juan Asbun-Bojalil Journal: PLoS One Date: 2015-03-13 Impact factor: 3.240