1221004 MCA middle cerebral artery 8229 1276214 MRA middle rectal artery 8 1209467 MAC middle cerebral artery 2 81613 CM middle cerebral artery 1 267339 MC middle cerebral artery 1 3018564 MCA-L middle cerebral artery 1 3017784 MCAB middle cerebral artery 1 2444635 MCABA middle cerebral artery 1 3018794 MCAT middle cerebral artery 1 3017821 MCAa middle cerebral artery 1 1223796 MCI middle cerebral artery 1 277080 Ml middle cerebral artery 1