Doctor of Medicine, University Copenhagen, 1974. Pediatrician, 1980; Pediatrics allergologist, 1989. Division of Medical Sciences, University Lund, Sweden, 1994.
Intern Plimart Hospital Mamstad, Sweden, 1974-1980. Registrar Falkenberg Pediatrics Clinic, Sweden, 1980-1982. Consultant Sweden, 1982-1991.
Consultant department pediatrics allergology Hospital of Nordvästra, Skåne, since 1992.
Member Swedish Enuresis Academy (founding member), International Childrens Continence Society (founding member), Swedish Medical Society, Swedish Pediatrics Society, Swedish Pediatrics Allergy Society, Swedish Society for Allergology, Danish Society for Allergology, European Academy for Allergology and Clinical Immunology, European Committee Continuing Education for Practicing Allergologists, European Society Pediatrics Allergy and Clinical Immunology.
Married Anne-Grethe Biilman, 1967 (divorced 1969). 1 cihld, Jakob Ion; married Hanne Hoff-Jessen, December 1, 1980. Children: Morten Joakim, Jonas Anton.