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Pulmonary Valve Substituted For Aortic
A new technique of homograft valve replacement in which the patient's own pulmonary valve is used to replace a defective aortic or mitral valve was described at the annual Clinical Congress of the American College of Surgeons....
The Federal Trade Commission ruled that Chas. Pfizer & Co. and American Cyanamid Co. improperly obtained patents on tetracycline and ordered the two firms to license any firm to produce the drug.
A spokesman for Pfizer said the decision would be appealed to the courts. "We...
Acute idiopathic thrombocytopenic purpura often undergoes spontaneous remission, especially in the young. In patients with chronic conditions complete remissions are unusual. Splenectomy is a recognized therapeutic measure for the cases that fail to remit. However, in about 50% of adults...
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