Electronic Resource
Ray, B. D.
;
McDermott, A.
;
Wardle, P. G.
;
[et al.]
Corrigan, E.
;
Mitchell, J. D.
;
McLaughlin, E. A.
;
Sykes, J. A. C.
;
Foster, P. A.
;
Hull, M. G. R.
;
Soper, C.
Springer
Journal of assisted reproduction and genetics
4 (1987), S. 58-61