EARN, A A Mental concentration--a new and effective psychological tool for the abolition of suffering in childbirth. [electronic resource] - American journal of obstetrics and gynecology Jan 1962 - 29-36 p. digital Publication Type: Journal Article ISSN: 0002-9378 Standard No.: 10.1016/0002-9378(62)90284-3 doi Subjects--Topical Terms: Delivery, ObstetricFemaleHumansLabor, Obstetric--psychologyParturitionPregnancyStress, Psychological