Perhaps you should try some spelling variations:
during depressed » during depressive (Expand search), during repressive (Expand search), feeling depressed (Expand search)
decrease ligand » decrease and (Expand search), decrease lipid (Expand search), decrease lodging (Expand search)
ligand decrease » and decrease (Expand search), ligand release (Expand search), ligands increased (Expand search)
decrease during » increase during (Expand search), increases during (Expand search), increased during (Expand search)
decrease by » decreased by (Expand search), decrease in (Expand search), decrease of (Expand search)
by decrease » by decreased (Expand search), may decrease (Expand search), any 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 by decrease AND preprocessing ) OR ( decrease ligand decrease during depressed ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease by decrease AND preprocessing ) OR ( decrease ligand decrease during depressed ))*.