1257334 MP4 MalPEG-Hb, formulated at 4.2g/dL in lactated Ringer's solution 2 1257335 MP4 membrane-associated placental protein 4 2 1257338 MP4 MPEG-4 2 1257336 MP4 Maleimide-polyethylene glycol hemoglobin, 4.3 g/dL 1 1257333 MP4 MalPEG-hemoglobin, 4 g/dL 1 1257332 MP4 metaprogram 4 1 1257331 MP4 minipools of 4 1 1257329 MP4 minipools of 4 donations 1 1257337 MP4 MPC and 4% PPI 1 1257330 MP4 musculus predicted gene 4736 1