G Karsdorf, H Klappach. Show Affiliations »
Abstract
Mesh: See more » AchievementAdolescentFemaleGermany, EastHumansLearningMaleNoise/adverse effectsSchool Health ServicesStudents
Year: 1968 PMID: 5734095
Source DB: PubMed Journal: Z Gesamte Hyg ISSN: 0049-8610