title: Infectious mononucleosis in Denmark. Epidemiological observations based on positive Paul-Bunnell reactions from 1940-1969.
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D000910:Antibodies, Heterophile; D002648:Child; D002675:Child, Preschool; D003718:Denmark; D005260:Female; D006386:Hemagglutination Tests; D006801:Humans; D007223:Infant; D007244:Infectious Mononucleosis / Q000453:epidemiology* / Q000276:immunology; D008297:Male; D008875:Middle Aged; D012424:Rural Population; D012621:Seasons; D012737:Sex Factors; D013997:Time Factors; D014505:Urban Population
chemical_list: D000910:Antibodies, Heterophile