laboratory diagnostic - allergies IgE specific, AIR allergens, multiple, Acer negundo (Box-elder), Betula verrucosa (Common silver birch), Quercus alba (Oak), Ulmus americana (Elm), Juglans californica (Walnut), tx1, serum 1ml, non-haemolysed, refrigerated, Fluorescent Enzyme-immunoassay, ISO 15189, todylaboratories®, bmn, code L16LD2298