By Rai K   Gupta S   Cotter S   in The European Journal of Contraception and Reproductive Health Care

ISSN:1473-0782|9|1|39-46

Informa Healthcare‎(2004)‎

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By KELLY S.A.   CHINO Y.M.   COTTER S.A.   KNUTH J.   in Vision Research

ISSN:0042-6989|37|1|151-163

Elsevier‎(1997)‎

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