Van Der Walt, J.J.; Van Rooyen, J.M.; Lotter, A.P.; Verwoerd, Daniel Wynand(Published by the Government Printer, Pretoria., 1990)
ST-segment changes in the ECG, which are an indication of acute myocardial ischaemia, are obtained when a small quantity of an extract from dried Pachystigma pygmaeum is injected intravenously in sheep. When the fraction ...
