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Dive into the research topics where Hisashi Yokoyama is active.

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Featured researches published by Hisashi Yokoyama.


Japanese Circulation Journal-english Edition | 1971

Clinical Pathophysiological Studies on Myocardial Oxygen Metabolism

Hisashi Yokoyama


Japanese Circulation Journal-english Edition | 1982

Natural history of juvenile essential hypertension

Kazutoshi Ishizawa; Hisashi Yokoyama; Morihito Okada; Akira Matsumori


Japanese Circulation Journal-english Edition | 1980

53) The diagnostic usefulness of the vectorcardiogram. 1. Detection of small inferior wall myocardial infarction : 第43回日本循環器学会近畿地方会

Morihito Okada; Kazutoshi Ishizawa; Hisashi Yokoyama; Akira Matsumori


Japanese Circulation Journal-english Edition | 1980

36) Echocardiographic, phonocardiographic, mechanocardiographic and vectorcardiographic findings observed in a patient with intermittent type A Wolff-Parkinson-White syndrome : 第43回日本循環器学会近畿地方会

Kazutoshi Ishizawa; Hisashi Yokoyama; Morihito Okada; Akira Matsumori


Japanese Circulation Journal-english Edition | 1979

A STUDY ON THE ANTEROPOSTERIOR DISTANCE OF THE LUNG AND THE MAGNITUDE OF QRS VOLTAGE : THE IV CONFERENCE ON VECTORCARDIOGRAPHY

Kazutoshi Isizawa; Hisashi Yokoyama; Morihito Okada; Hideya Matsumoto; Akira Matsumori; Masao Takayasu


Japanese Circulation Journal-english Edition | 1979

THE INCIDENCE OF THE LEFT VENTRICULAR HYPERTRONTROPHY IN BORDERLINE HYPERRTENSIVE AND AGE-MATCHED NORMOTENSIVE MALES. A TEN YEAR FOLLOW-UP STUDY : Hypertension I : Ist Auditorium : Proceedings of the 43rd Annual Meeting of the Japanese Circulation Society, Tokyo, 1979

Kazutoshi Ishizawa; Hisashi Yokoyama; Morihito Okada; Hideya Matsumoto; Hajime Fukubori; Akira Matsumori; Kenji Kawashita


Japanese Circulation Journal-english Edition | 1978

Echocardiographic features, left heart events and the spatial ventricular gradient in a case with intermittent type A Wolff-Parkinson-White syndrome.

Kazutoshi Ishizawa; Akira Matsumori; Hisashi Yokoyama; Morihito Okada


Circulation | 1978

ECHOCARDIOGRAPHIC FEATURES, LEFT HEART EVENTS AND THE SPATIAL VENTRICULAR GRADIENT IN A CASE WITH INTERMITTENT TYPE A WOLFF-PARKINSON-WHITE SYNDROME

Kazutoshi Ishizawa; Akira Matsumori; Hisashi Yokoyama; Morihito Okada


Japanese Circulation Journal-english Edition | 1977

17)THE SPATIAL VENTRICULAR GRADIENT: VENTRICULAR PREMATURE CONTRACTIONS : THE II CONFERENCE ON VECTORCARDIOGRAPHY

Kazutoshi Ishizawa; Hisashi Yokoyama; Morihito Okada; Akira Matsumori; Kenji Kawashita


Japanese Circulation Journal-english Edition | 1971

CLINICAL IMPORTANCE OF THE LEFT VENTRICULAR SYSTOLIC TIME INTERVALS USING MECHANOCARDIOGRAPHY : Proceedlngs of the 35th Annual Meetlng of the Japanese Circulation Society (part II)

Yasuo Higashihara; Hisato Higuchi; Kiyoko Fujihara; Katsuzumi Mori; Akira Terauchi; Kotaro Furuta; Ken Miyazawa; Norio Goto; Hideo Kamide; Hisashi Yokoyama; Seiichi Ohsugi; Hisashi Akioka; Ryutaro Yajima; Ichiro Seki

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