The preferred site for bone marrow biopsy in an adult is the

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• A 56-year-old woman slips on ice and hits her head on the pavement, but she does not give much weight to this event. During the following three weeks, she develops a persistent headache, she is increasingly distractible and forgetful, and at night she becomes fearful and disoriented. The most likely cause of such changes is
• A 15-year-old boy developed a left Bell''s palsy over the course of 1 week. He was treated with acyclovir and prednisone. Over the next 3 months he seemed to recover almost fully. However,he has noticed involuntary twitching at the left corner of the mouth each time he tries to blink the left eye. This is most likely caused by:
• Smith believes that the devil has chosen him for a special mission in the underworld.He refuses food saying that he has to be pure for his mission.He draws symbols on himself and the walls saying that this will show the way to the devil. Although he canno
• Smith believes that the devil has chosen him for a special mission in the Underworld.He refuses food saying that he has to be pure for his mission.He draws symbols on himself and the walls saying that this will show the way to the devil.Although he cannot explain why and how he was chosen，he cannot accept that his belief is illogical.What symptoms of schizophrenia is Michael showing
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