Bass, C Fear talk versus voluntary hyperventilation in agoraphobics and normals: a controlled study. [electronic resource] - Psychological medicine Aug 1989 - 669-76 p. digital Publication Type: Journal Article ISSN: 0033-2917 Standard No.: 10.1017/s0033291700024260 doi Subjects--Topical Terms: Agoraphobia--diagnosisArousal--physiologyCarbon Dioxide--bloodFear--physiologyHeart RateHumansHyperventilation--psychologyPanic--physiologyRespirationVerbal Behavior--physiology