male

sex
Also known as: ♂

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Duchenne muscular dystrophy

  • Clostridium tetani
    In muscle disease: The muscular dystrophies

    …Duchenne type, which predominately affects boys, is severe. It causes difficulty in walking at about the age of four years, loss of the ability to walk at about the age of 11, and death before the age of 20, usually because of respiratory failure or pulmonary infections. There is a…

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early theories of heredity