1626557 SMP submucosal plexus 27 1626638 SmP streptomycin pseudodependent 4 1626572 SmP streptomycin 2 1626640 SmP silver microparticles 1 1626641 SmP smart polymer 1 1626637 SmP smooth-pursuit 1 1626639 SmP Spirulina maxima 1