_corr = TRUE, visit_med75 = FALSE, under_only = FALSE</li>
<li>retire sim_ur_scenarios, get_portf_perf, sim_studies, get_ecd_values, get_pat_pool_config portfolio performance will be calculated by removing events directly from the data with sim_out</li>
<li>remove check argument from low-level interface functions site_aggr and sim_sites</li>
<li>use test helper functions to generate data for unit testing</li>
<li>reuse saved test data for regression testing towards earlier simaerep versions</li>
<li>pass al