1622225 SMC smooth muscle cell 4374 3458292 SMCs smooth muscle cells 4339 430742 SM smooth muscle cells 8 2057651 SMC's smooth muscle cells 3 1626968 SMs smooth muscle cells 2 1622224 s.m.c smooth muscle cells 2 2015208 SCSMCs smooth muscle cells 1 3429302 SEMs smooth muscle cells 1 2201640 SMCECM smooth muscle cells 1 3457012 SMCc smooth muscle cells 1 1594646 see smooth muscle cells 1