Before revision:  However, most analyses implicitly assume that the considered  data is error-free and reliable . Especially if the network consists of multiple groups, this assumption conflicts with the range of systematic reporting biases, measurement errors and other inaccuracies that are well documented in our community.
After revision:  However, most analyses implicitly assume that the considered data is error-free , reliable and accurately reflects the system to be analysed . Especially if the network consists of multiple groups, this assumption conflicts with the range of systematic reporting biases, measurement errors and other inaccuracies that are well documented in our community.