Key Players: Antares Pharma, Inc. (US), Bioject Medical Technologies Inc. (US), Endo International plc (US), European Pharma Group (Netherland), PharmaJet (US), Medical International Technology, Inc. (US), Valeritas, Inc. (US), PenJet Corporation (US), INJEX Pharma AG (Germany), National Medical Products Inc. (US), Crossject SA (France), Zogenix, Inc. (US), 3M Company (US) and others are some...