Additional research projects have further determined the prevalence rate of these atheromas in the general population (3–5%)[8][9] and among high-risk groups (over 25% in: recent stroke victims,[10] individuals with obstructive sleep apnea syndrome,[11][12][13] postmenopausal women,[14] type 2 diabetics,[15][13][16] individuals with dilated cardiomyopathy,[17][13] and among individuals who have received radiotherapy directed at the neck,[18][19]). These findings have been corroborated by other several other researchers.[20][21][22][23][13]