Antibodies against neuroactive amino acids and neuropeptides. II. Simultaneous immunoenzymatic double staining with labeled primary antibodies of the same species and a combination of the ABC method and the hapten-anti-hapten bridge (HAB) technique. - Behringer DM; Meyer KH; Veh RW (The journal of histochemistry and cytochemistry : official journal of the Histochemistry Society, 1991)