The participants were 18 boys, aged between 8 and 11 years Subjects A total of 135 subjects were invited to participate through the collaboration of various schools in the town of Cáceres, Spain.
The participants were 18 boys, aged between 8 and 11 yearsSubjectsA total of 135 subjects were invited to participate through the collaboration of various schools in the town of Cáceres, Spain.