Koch, A Respiratory tract infections in Greenlandic children: a prospective cohort study. [electronic resource] - International journal of circumpolar health 1998 - 252-4 p. digital Publication Type: Journal Article ISSN: 1239-9736 Subjects--Topical Terms: Child, PreschoolCohort StudiesFemaleGreenland--epidemiologyHumansIncidenceInfantMaleProspective StudiesRespiratory Tract Infections--epidemiologyRisk Factors