551,185 PILHALL MARTIN Vectorcardiographic QRS changes during execise : a study on mechanisms and relations to Ischaemic heart disease : [akademlsk avhandling] / by Martin Pilhall ; from the Department of Clinical Physiology, östra Hospital University of Göteborg, Sweden. - Göteborg : University, 1992. - 131 s. wiele liczb. : il., wy kr. j 25 cm Zawiera 5 prac współaut. ISBN 91-628-0774-9