review 2003 ABC of subfertility: extent of the problem BMJ (Clinical research ed.) ·doi:10.1136/bmj.327.7412.434
review 2003 ABC of subfertility. Making a diagnosis BMJ (Clinical research ed.) ·doi:10.1136/bmj.327.7413.494
2000 Effect of Pelvic Endometriosis on the Outcome of Assisted Conception Treatment ·doi:10.1016/s0015-0282(00)01218-8