'''Preliminary notes'''

:Separate out reactions from allergies 
:Divide allergies into those involving IgE mediated reactions and those not involving IgE mediated reactions

:See poster by Yu, et al.:
:[http://ontology.buffalo.edu/medo/ACAAI-2012.pdf Formal and Computable Representations of Allergic Diseases in the Electronic Health Record: An Approach Based on the Ontology of General Medical Science]