Conclusion The symptoms of primary cardiac tumor are diverse and complex, and echocardiography, CT, MRI are instrumental for a definite early diagnosis.
结论原发性心脏肿瘤临床表现复杂多样，超声心动图、CT、MRI等检查是早期明确诊断的重要手段。
2
The instrumental-emotional relationship is the primary relationship type during the societal transition in the rural areas;