Complex sentence: Lawyers for the plaintiffs appealed the ruling, alleging that the psychological effects of the abuse weren't fully realized until 2012, but in April 2014, the decision was upheld by the U.S. Court of Appeals.
Split into simpler sentences: Lawyers for the plaintiffs appealed the ruling, alleging that the psychological effects of the abuse weren't fully realized until 2012. In April 2014, however, the decision to dismiss the cases was upheld by the U.S. Court of Appeals.