“…Five evaluations/studies did not specify sex of the MCs in the description of the methods [28,31,38,40,43]. Eleven of the 30 evaluations/studies reviewed did not specify the ages of the MCs recruited for the study [17,19,20,30,32,33,35,38,40,41,43], while the rest recruited individuals who were 25 years old and under [16,18,21–29,31,34,36,37,39,44,45]. …”