obsolete_sample population true GROUP: OBI Biomaterial Branch Patterns of benzylpiperazine/trifluoromethylphenylpiperazine party pill use and adverse effects in a population sample in New Zealand. Drug Alcohol Rev. 2008 Mar 31:1-7. PMID: 18608458 PERSON: Philippe Rocca-Serra obsolete_sample population PERSON: Jennifer Fostel A sample population is an object aggregate that is selected from the population, e.g. the fish in the net that were sampled from the lake, the people that responded to the call for volunteers. recruited population Obsolete Class metadata complete terms merged