TY - GEN AU - Marx,J L TI - Alzheimer's drug trial put on hold SN - 0036-8075 PY - 1987///1223 KW - Alzheimer Disease KW - diagnosis KW - Aminoacridines KW - adverse effects KW - Clinical Trials as Topic KW - Humans KW - Tacrine N1 - Publication Type: Clinical Trial; News UR - https://doi.org/10.1126/science.3317822 ER -