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In some organs, adult stem cells are uniquely poised to serve as cancer cells of origin. It is unclear, however, whether tumorigenesis is influenced by the activation state of the adult stem cell. Hair follicle stem cells (HFSCs) act as cancer cells of origin for cutaneous squamous cell carcinoma and undergo defined cycles of quiescence and activation. The(More)
An unusual case of respiratory failure and dropped head syndrome as a complication of severe chronic graft-versus-host disease (GVHD)-related polymyositis is described. The patient required tracheostomy and mechanical ventilation but recovered following treatment with aggressive immunosuppression and intensive rehabilitation. The differential diagnoses of(More)
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