Frédéric Chopin's illness
... that there are several alternative explanations of Frédéric Chopin's illness?
... that there are several alternative explanations of <b id="mwHzc"><a class="mw-redirect" href="./Frédéric_Chopin's_illness" id="mwHzg" rel="mw:WikiLink" title="Frédéric Chopin's illness">Frédéric Chopin's illness</a></b>?