Pulvermacher's chain battery
... that Pulvermacher's chain battery was used in experiments by dentists in an attempt to anaesthetise patients with electric shocks?
... that <b id="mwESc"><a href="./Pulvermacher's_chain" id="mwESg" rel="mw:WikiLink" title="Pulvermacher's chain">Pulvermacher's chain battery</a></b> was used in experiments by dentists in an attempt to anaesthetise patients with electric shocks?