The <i><scp>ABCB</scp>1</i>, rs9282564, <i><scp>AG</scp></i> and <i><scp>TT</scp></i> Genotypes and the <i><scp>COMT</scp>,</i> rs4680, <i><scp>AA</scp></i> Genotype are Less Frequent in Deceased Patients with Opioid Addiction than in Living Patients with Opioid Addiction
Distribution of the number of citations over years.