David Molloy, Marian Martin, Andrew Speirs, Alexander Lopata, Geoffrey Clarke, John McBain, Andrew Ngu, Ian H. Johnston,
Performance of patients with a "frozen pelvis" in an in vitro fertilization program. Fertility and Sterility. ,vol. 47, pp. 450- 455 ,(1987) ,
10.1016/S0015-0282(16)59054-2