Irregular Breathing
In Internal Medicine, Little, Brown & Co, Boston, 3rd Ed, p. 573-574, Cherniack,N.S., 1990
Fecal Incontinence
NEJM 326:1002-1007, Madoff,R.D.,et al, 1992
Digital Video Subtraction Angiography of the Cervical & Cerebral Vasculature
J Neurosurg 56:173-179, Seeger,J.F.,et al, 1982