This letter to the Editor, shares José Luis Sandoval Gutiérrez MD opinion, who takes up the article "How many Little Red Riding Hoods will be gobble up by the Ferocious Wolves?", Rev Fac Med (UNAM), 2018;61(5):54-56. He advocates for ensure that the ethical aspects involved in research projects participating invitations extended to undergraduate students in order to complete his master's or doctorate with scholarship except that they experienced their integrity and recognition academic principles violation, as well as the protection of intellectual authorship.