(Hyppighed er defineret således: meget almindelige (mere end 1 ud af 10 personer), almindelige (mere end 1 ud af 100 personer og mindre end 1 ud af 10 personer), ualmindelige (mere end 1 ud af 1. 000 personer og mindre end 1 ud af 100 personer), sjældne (mere end 1 ud af 10. 000 personer og mindre end 1 ud af 1. 000 personer), meget sjældne (mindre end 1 ud af 10. 000 personer inklusive enkeltstående tilfælde)
(Frequencies are defined as follows: very common (more than 1 out of 10 persons), common (more than 1 out of 100 persons and less than 1 out of 10 persons), uncommon (more than 1 out of 1,000 persons and less than 1 out of 100 persons), rare (more than 1 out of 10,000 persons and less than 1 out of 1,000 persons), very rare (less than 1 out of 10,000 persons including isolated reports)