A 27 Ahn, B. The acute effect of tobacco-smoking and nicotine on the electrocardiogram. Especially during induced hypoxia. A clinical and experimental investigation. Accomp. Vol. CXLIX (149) / B. Ahn. - Stockholm : [s. n.], 1954. - 112 p. - (Acta medica Scandinavica ; suppl. CCXCII (292)). - Б. ц.
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