Headaches with positional nystagmus. Mechanism and cure.
Card's contents:602,953 ARULPRAGASAM A. C. Headaches with positional nystagmus. Mechanism and cure. Uppsala 1974 The Almqvist and Wiksell, Stockholm 8° s. 24, ilustr. Acta Oto-Laryngologica, suppl. 322.