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Have guidelines lost their way?
  1. Philip D Welsby
  1. Retired, Edinburgh, UK
  1. Correspondence to Philip D Welsby, Retired, Edinburgh, UK; philipwelsby{at}aol.com

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The paper ‘The 5.3.5 rule for examining the muscles of the upper limb’ by Peter Gates1 contains many inter-related facts in effect constituting an algorithmic approach to the patterns of upper limb weakness. This approach begs several important questions, all based on the wide spectrum of neurological abilities possessed by individuals and on the numerous types of thinking (concrete vs abstract, convergent vs divergent, creative vs analytical and sequential vs holistic) that we all possess or lack to a greater or lesser degree.

Can most physicians absorb and remember complex long sequences of instructions when memory for random number sequences for an average adult is only about seven?

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