Perhaps you should try some spelling variations:
decrease methylation » decrease migration (Expand search), accurate methylation (Expand search)
methylation pattern » methylation patterns (Expand search)
decrease toc » decrease the (Expand search), decreased to (Expand search), decrease on (Expand search)
toc decrease » to decrease (Expand search), the decrease (Expand search), not decrease (Expand search)
in decrease » in decreased (Expand search), on decrease (Expand search), pain decrease (Expand search)
of decrease » or decrease (Expand search), not decrease (Expand search), to 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 toc decrease in decrease ) OR ( decrease of decrease methylation pattern ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease toc decrease in decrease ) OR ( decrease of decrease methylation pattern ))*.