adverseeffects attentiondeficitanddisruptivebehaviordisorders cancer child childbehaviordisorders childpsychiatry childpsychotherapy clinicaldecision-making control costof decisionmaking diagnosis earlydetectionofcancer erectiledysfunction familypsychotherapy familytherapy gatekeeping health insurance medicalcare methods needsassessment politics popularworks prevention prostate prostaticneoplasms psychotropicdrugs reimbursement surgery therapy trends unitedstates unnecessary wb141 wj762b658i2010