[1] IOC FIOCRUZ, Lab Toxinol, Ave Brasil 4365, BR-21040900 Rio De Janeiro, RJ, Brazil
[2] INCTTOX Natl Inst Sci & Technol Toxins, Brasilia, DF, Brazil
[3] Pasteur Inst, Struct Mass Spectrometry & Prote Unit, Paris, France
[4] Univ Estadual Campinas, Dalton Mass Spectrometry Lab, Campinas, Brazil
[5] Univ Costa Rica, Clodomiro Picado Inst, San Jose, Costa Rica