Synthesis and opioid activity of new fentanyl analogs Authors: Girón R, Abalo R, Goicoechea C, Martín MI, Callado LF, Cano C, Goya P, Jagerovic N. Year: 2002 Journal: Life Sciences Volume: 71(9) Initial page - Ending page: 1023 - 1034 More information http://www.ncbi.nlm.nih.gov/pubmed/12088762?ordinalpos=28&itool=EntrezSystem2.PEntrez.Pubmed.Pubmed_ResultsPanel.Pubmed_DefaultReportPanel.Pubmed_RVDocSum