A 4-year-old boy is brought to the clinic due to frequent fa…
A 4-year-old boy is brought to the clinic due to frequent falls, difficulty running, and a waddling gait. His parents report that he struggles to rise from the floor without using his hands to push off his thighs. Based on these observations, which of the following best describes the characteristics of Duchenne muscular dystrophy? (Select all that apply).
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