On the basis of reviewing the progress in the high efficient enrichment from secondary resources of low-grade precious metals at home and abroad,a process route
Gastric cancer is the second most common malignancy in the world.Surgical resection with lymph node dissection remains the only potentially curative therapy for
Objective To assess Chinese surgeon practice of thromboprophylaxis following major orthopedic surgery.Methods A questionnaire survey was conducted amongst Chine