Perhaps you should try some spelling variations:
decrease ovarian » decreases ovarian (Expand search), decreased ovarian (Expand search), decrease asian (Expand search)
ovarian patterns » varied patterns (Expand search), variation patterns (Expand search), location patterns (Expand search)
decrease risk » decreased risk (Expand search), increase risk (Expand search), decrease in (Expand search)
risk decrease » risk decreases (Expand search), risk increase (Expand search), break decrease (Expand search)
decrease can » decrease in (Expand search), decrease and (Expand search), decrease on (Expand search)
can decrease » and decrease (Expand search), can increase (Expand search), to decrease (Expand search)
decrease at » decrease akt (Expand search), decrease and (Expand search), decrease in (Expand search)
at decrease » rate decrease (Expand search), that decrease (Expand search), and decrease (Expand search)

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "(( decrease can decrease at decrease ) OR ( decrease risk decrease ovarian patterns ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease can decrease at decrease ) OR ( decrease risk decrease ovarian patterns ))*.