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2. “Hudtestningen vid Asthma Bronchiale,”;Kallner;Opuscula medica,1958
3. “Is Skin Testing in Allergic Patients Worth the Effort?”;Friedewald;J. of Allergy,1952
4. “A Nasal Test with Dry Pollens in the Diagnosis of Seasonal Hay Fever,”;Efron;J. of Allergy,1930