“…In relation to representativeness of the controls, fifty-six percent were either population–based or healthy volunteers[36,38–42,45,46,48,51–53,55,58,62–65,67,69–72,74,77,80,82,83] and forty-five percent were both population-based and hospital-based/healthy volunteers/blood donors[34,35,37,43,44,47,49,50,54,56,57,59–61,66,68,73,75,76,78,79,81]. Sixty four percent of control matched only one variable (age, gender or ethnicity) with cases[36–40,42–48,50–54,56,57,62,66,68,69,71,73,75–79,81,82]. Ninety-two percent clearly described diagnosis for JME[35–53,55–78,80,82,83].…”