RT Journal Article SR Electronic T1 Reconsidering the revised amyotrophic lateral sclerosis functional rating scale for ALS clinical trials JF Journal of Neurology, Neurosurgery & Psychiatry JO J Neurol Neurosurg Psychiatry FD BMJ Publishing Group Ltd SP 569 OP 570 DO 10.1136/jnnp-2020-325253 VO 92 IS 5 A1 Adriaan D de Jongh A1 Leonard H van den Berg A1 Ruben P A van Eijk YR 2021 UL http://jnnp.bmj.com/content/92/5/569.abstract AB