Their detcctioll gives re:mn lmsistent. though he may appear clinic:llly to hare
for continuing recovered.
Harold and Siegel, Mortimer L.: Electrocardiographic Changes during tacks of Angina Pectoris. AIII. Jour. hlctl. Sri., 1328, ~lss\-~ p. 055.
attacks of :Lngina pectoris presumably due to Four patients suffering frum coronary sclerosis were observed during p:~rosysms of pain. ln three of these patients, there was inrersiou IIf the S-T port.ioIl of the curve in Leads I :cnd II, while the patients compl:rined of substeru:ll l):liu. The iflrcrsion was greatest ill Ilead II. The cun-es resanlcd their Ilrtxritilus rorltllllrs after the pilill subsided. One l~:itient slio~c~d no electl~oc;~~di~~g~~~~~l~i~~ c*l~:rnge (lluillg the paroxysm of pain.