this communication concerns itself with results of testing patients with clinical sensitivity and positive patch test reactions to the parabens or benzyl alcohol with scratch , intracutaneous and subcutaneous injections of these preservatives in order to determine the relationship of the `` '' delayed '' '' type of allergic hypersensitivity to the parabens and benzyl alcohol with the `` '' immediate '' '' variety of hypersensitivity .
C0020517
f allerg
C0020523
`` '' immedi