Table 1 Investigation of patients	Table 1 Investigation of patients	Table 1 Investigation of patients	Table 1 Investigation of patients
Patient	One	Two	Three	Three
Skin prick-to-prick test, mm Zgougou paste Ground white pine nut	11 7	8 10	19 NA	19 NA
Skin prick test, mm White pine nut extract	NA	10	14	14
Total IgE, kUI/L N<60	157	587	581	581
White pine nut specific IgE, kUA/L N<0.35	1.73	1.07	49	49
Skin test readings taken at 15 min were evaluated by comparing the wheal induced by the offending food and by a positive control of 10 mg/ml of histamine and a negative control of saline. A positive response was interpreted when the induced wheal was ≥ 3 mm compared to the negative control. NA : not available	Skin test readings taken at 15 min were evaluated by comparing the wheal induced by the offending food and by a positive control of 10 mg/ml of histamine and a negative control of saline. A positive response was interpreted when the induced wheal was ≥ 3 mm compared to the negative control. NA : not available	Skin test readings taken at 15 min were evaluated by comparing the wheal induced by the offending food and by a positive control of 10 mg/ml of histamine and a negative control of saline. A positive response was interpreted when the induced wheal was ≥ 3 mm compared to the negative control. NA : not available	Skin test readings taken at 15 min were evaluated by comparing the wheal induced by the offending food and by a positive control of 10 mg/ml of histamine and a negative control of saline. A positive response was interpreted when the induced wheal was ≥ 3 mm compared to the negative control. NA : not available