RT Journal Article SR Electronic T1 Ovarian Cysts JF British Medical Journal JO BMJ FD British Medical Journal Publishing Group SP 170 OP 172 DO 10.1136/bmj.1.59.170 VO 1 IS 59 A1 Nicholson, John F. YR 1862 UL http://www.bmj.com/content/1/59/170.abstract AB