This text is missing some spaces, please add them: Inclinicalstudies,significantconcomitantpositivepatchtestreactionshavebeenobservedinvolvingcolophoniumandreactionstofragrancemarkers(fragrancemixandbalsamofPeru)amongconsecutivepatients(2-4).
In clinical studies, significant concomitant positive patch test reactions have been observed involving colophonium and reactions to fragrance markers (fragrance mix and balsam of Peru) among consecutive patients (2-4).