RT Journal Article SR Electronic T1 Clinical Lecture on some Varieties of Nervous Headache JF British Medical Journal JO BMJ FD British Medical Journal Publishing Group SP 224 OP 227 DO 10.1136/bmj.1.1050.224 VO 1 IS 1050 A1 Day, William Henry YR 1881 UL http://www.bmj.com/content/1/1050/224.abstract AB