in contrast to or in contrast with?

English as a Second Language Preparation for and help with the TOEFL® Test and
1

Could someone tell me which of the statements below is correct?
a) The result of this study is in contrast to the results of others.
b) The result of this study is in contrast with the results of others.

Thanks,
Armin

TOEFL listening lectures: How would the professor most probably categorize Shinto?

2

Both are acceptable.