%0 Journal Article %T l-Erythro-methoxamine is more potent than phenylephrine in effecting contraction of internal anal sphincter in vitro %A Jones, O M %A Thompson, J M %A Brading, A F %A Mortensen, N J McC %J British Journal of Surgery %V 90 %N 7 %P 872-876 %@ 0007-1323 %D 2003-07-04 %I BJS Society %~ DeepDyve