Mysteries of endometriosis pain: Chien-Tien Hsu Memorial Lecture 2009 Ian S. Fraser Department of Obstetrics and Gynaecology, University of Sydney, Sydney, New South Wales, Australia Correspondence to Professor Ian S. Fraser, Department of Obstetrics and Gynaecology, Queen Elizabeth II Research Institute for Mothers and Infants, University of Sydney, NSW 2006, Australia. Email: i_fraser [at] med […]