Rubin test
... that the Rubin test was once considered by many specialists "the twentieth century's most important contribution to the clinical study of female infertility"?
... that the <b id="mwEsY"><a class="mw-redirect" href="./Rubin_test" id="mwEsc" rel="mw:WikiLink" title="Rubin test">Rubin test</a></b> was once considered by many specialists "the twentieth century's most important contribution to the clinical study of <a href="./Female_infertility" id="mwEsg" rel="mw:WikiLink" title="Female infertility">female infertility</a>"?