Affiliations

• ¹ Department of Population Medicine, Harvard Medical School and Harvard Pilgrim Health Care Institute, Boston, Massachusetts, USA; Department of Dermatology, Massachusetts General Hospital, Boston, Massachusetts, USA. Electronic address: maria@blombergs.dk.
• ² Department of Population Medicine, Harvard Medical School and Harvard Pilgrim Health Care Institute, Boston, Massachusetts, USA.
• ³ Department of Emergency Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA.
• ⁴ Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, 181 Longwood Ave, Boston, Massachusetts, USA; Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA.
• ⁵ Department of Population Medicine, Harvard Medical School and Harvard Pilgrim Health Care Institute, Boston, Massachusetts, USA; Department of Dermatology, Massachusetts General Hospital, Boston, Massachusetts, USA.
• ⁶ Department of Dermatology and Allergy, National Allergy Research Centre, Gentofte University Hospital, Hellerup, Denmark.
• ⁷ Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, 181 Longwood Ave, Boston, Massachusetts, USA.
• ⁸ Environmental Influences on Child Health Outcomes (ECHO) Program, Office of the Director, National Institutes of Health, Rockville, Maryland, USA.