sentences:  In electrically stimulated guinea pig [[ileum]], for example, contractions were unaffected by a concentration of 5 x 10−4M of MLA.A more detailed summary of the above data, together with much related material, may be found in a review written by Kip Panter and collaborators at [[USDA-ARS]] laboratories in Utah and California.A significant advance was made towards understanding the pharmacology of MLA when Jennings and co-workers at the American Cyanamid Company reported that MLA (as its citrate salt) strongly inhibited the binding of tritiated propionyl-[[α-bungarotoxin]] to a [[Receptor (biochemistry)|receptor]] preparation from house-fly heads, with a Ki of ~ 2.5 x 10−10M.