MS2 fragmentation was performed as described in the method section, but only the singly-charged b7-ion (m/z 1010.5) was targeted for MS3 fragmentation
Aspirin (Rx, OTC)
-Post inflammatory pigmentation Long-standing inflammatory mucosal diseases, such as oral lichen planus, pemphigus or pemphigoid can cause mucosal pigmentation (3)

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Benoist CC, Kawas LH, Zhu M, Tyson KA, Stillmaker L, et al
Invitro studies suggested that reduced glutathione might facilitate a more efficient oxidative folding in the IMS (Bien et al , 2010)