title: [Studies on the occurrence of hemagglutinin inhibiting antibodies against parainfluenza viruses in the population].
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000906:Antibodies; D002648:Child; D002675:Child, Preschool; D006801:Humans; D066298:In Vitro Techniques; D007223:Infant; D007231:Infant, Newborn; D008875:Middle Aged; D009976:Orthomyxoviridae Infections / Q000276:immunology*; D010222:Parainfluenza Virus 1, Human / Q000276:immunology*; D018108:Respirovirus / Q000276:immunology*
chemical_list: D000906:Antibodies
vernacular_title: Untersuchungen über das Vorkommen hämagglutinationshemmender Antikörper gegen Parainfluenzaviren in der Bevölkerung.