Am I correct in saying "This isn't a new trial-based study; it's really just an analysis of available study data based on either (a) other previously published

Am I correct in saying "This isn't a new trial-based study; it's really just an analysis of available study data based on either (a) other previously published analyses of this type, or (b) an interpretation on follow-ups of clinical trials"? I'm not used to reading science journals so it's possible that I missed something. http://annonc.oxfordjournals.org/content/early/2014/07/30/annonc.mdu225.full http://annonc.oxfordjournals.org/content/early/2014/07/30/an... Methods The effect of aspirin for site-specific cancer incidence and mortality, cardiovascular events was collated from the most recent systematic reviews. Studies identified through systematic Medline search provided data regarding harmful effects of aspirin and baseline rates of harms like gastrointestinal bleeding and peptic ulcer.