Matched context for difficulty and complication

The page lists matched contexts for difficulty and complication.

Share - difficulty	Share - complication	Phrase
5.48%	28.27%	{difficulty or complication} [does] arise
2.29%	10.44%	avoid {difficulty or complication} [perform operation]
1.74%	3.82%	cause {difficulty or complication} [perform operation]
0.23%	12.00%	additional [importance] {difficulty or complication}
0.15%	7.33%	system {difficulty or complication}
0.21%	4.10%	prevent {difficulty or complication} [perform operation]