title: Design aspects of clinical trials with ergot alkaloids: a comparison of two geriatric behavioral rating scales.
mesh_terms: D000368:Aged; D002986:Clinical Trials as Topic; D003704:Dementia / Q000188:drug therapy* / Q000523:psychology; D004088:Dihydroergotoxine / Q000627:therapeutic use*; D006801:Humans; D011569:Psychiatric Status Rating Scales; D012917:Social Adjustment
chemical_list: D004088:Dihydroergotoxine