Fig. 2From: ALSFRS-R-SE: an adapted, annotated, and self-explanatory version of the revised amyotrophic lateral sclerosis functional rating scaleOverview of origins of ALSFRS-R versions and variants and the collection process. A total of 20-ALS centers responded to the request to provide extant ALSFRS-R versions and variants. Nine different German variants and the original English version by Cedarbaum et al. [1] were collected. Translated variants differed in terms of wording. Two variants were designated for self-assessment. Several ALS centers use a shortened variant of the ALSFRS-EX [27]Back to article page