[I do not agree with those replies].
Rieke
Burkhard
B
D000293:Adolescent; D000328:Adult; D002648:Child; D019353:Endemic Diseases / Q000517:prevention & control; D005858:Germany; D006801:Humans; D012621:Seasons; D011795:Surveys and Questionnaires; D013997:Time Factors; D014195:Travel; D014611:Vaccination
Mit diesen Antworten bin ich nicht einverstanden.