RFRobert Fletcher0000-0003-1717-5707FollowUsage metrics Co-workers & collaboratorsAMAndrew MarxAndrew MarxJSJorge A. SefairJorge A. SefairSDSarah I. DuncanSarah I. DuncanEREllen RobertsonEllen RobertsonRJRodolfo JafféResearcher - Belém, BrazilRodolfo JafféRHRobert D. HoltRobert D. Holt