Dermatomyositis, polymyositis, and other inflammatory myositis conditions tend to cause weakness that gets worse slowly over weeks or months. The weakness affects large muscle groups, including the neck, shoulders, hips, and back.
An indirect quote is where you present an author's ideas in your own words. This can be done either through paraphrasing (go to next) or summarising. reference the sentence. Even though it has been written in your own words, it is still someone else's idea.
in math terms : Indirect proof is a type of proof in which a statement to be proved is assumed false and if the assumption leads to an impossibility, then the statement assumed false has been proved to be true.