Granero R, Fernandez-Aranda F, Aymami N, Gomez-Pena M, Fagundo AB, Sauchelli S, Del Pino-Gutierrez A, Moragas L, Savvidou LG, Islam MA, Tarrega S, Menchon JM, Jimenez-Murcia S. Subtypes of pathological gambling with concurrent illegal behaviors. J Gambl Stud. 2015 Dec;31(4):1161-78. doi: 10.1007/s10899-014-9499-5.
Candrilli SD, Davis KL, Iyer S. Impact of constipation on opioid use patterns, health care resource utilization, and costs in cancer patients on opioid therapy. J Pain Palliat Care Pharmacother. 2009 Sep 1;23(3):231-41.