Dr John Billings
...that Dr John Billings was an Australian neurologist who developed the Billings ovulation method of family planning?
...that <b id="mwDOg"><a class="mw-disambig" href="./John_Billings" id="mwDOk" rel="mw:WikiLink" title="John Billings">Dr John Billings</a></b> was an <a class="mw-disambig" href="./Australian" id="mwDOo" rel="mw:WikiLink" title="Australian">Australian</a> <a class="mw-redirect" href="./Neurologist" id="mwDOs" rel="mw:WikiLink" title="Neurologist">neurologist</a> who developed the <a href="./Billings_ovulation_method" id="mwDOw" rel="mw:WikiLink" title="Billings ovulation method">Billings ovulation method</a> of <a href="./Family_planning" id="mwDO0" rel="mw:WikiLink" title="Family planning">family planning</a>?