also known as Tree Allergen Mix 4 (White oak+White elm+London plane or Maple leaf sycamore+Willow+Cottonwood) IgE Ab in Serum by Multidisk
The Spring Allergen Profile measures IgE responses to smooth alder, beech, white birch, mountain cedar, American elm, white hickory, red maple, white oak, white poplar, sycamore, walnut and black willow.