Perhaps you should try some spelling variations:
risk decreased » risk decreases (Expand search), is decreased (Expand search), cross decreased (Expand search)
decrease cells » decrease cell (Expand search), decreases cell (Expand search), decrease costs (Expand search)
cells decrease » cells decreases (Expand search), cells increase (Expand search), cells increases (Expand search)
decrease renal » decreased renal (Expand search), decreases renal (Expand search), decrease fetal (Expand search)
decrease risk » decreased risk (Expand search), increase risk (Expand search), decrease in (Expand search)
renal objects » real objects (Expand search), metal objects (Expand search), penal object (Expand search)
decreased to » decreased the (Expand search), decreased tgf (Expand search), decreased in (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 risk decreased to decrease ) OR ( decrease cells decrease renal objects ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease risk decreased to decrease ) OR ( decrease cells decrease renal objects ))*.