essential hypertension
... that 95% of cases of hypertension are of the essential hypertension type, and that essential hypertension has many established risk factors?
... that 95% of cases of <a href="./Hypertension" id="mwEnI" rel="mw:WikiLink" title="Hypertension">hypertension</a> are of the <b id="mwEnM"><a href="./Essential_hypertension" id="mwEnQ" rel="mw:WikiLink" title="Essential hypertension">essential hypertension</a></b> type, and that essential hypertension has many established <a href="./Essential_hypertension#Risk_factors" id="mwEnU" rel="mw:WikiLink" title="Essential hypertension">risk factors</a>?