Background Many types of human tumors can suppress the immune system to enhance their survival. Loss or down-regulation of human leukocyte antigens (HLA) class
Background A new technique developed in 2002, real time endobronchial ultrasound-guided transbronchial needle aspiration (EBUS-TBNA), has been one of the most i
Background Some individuals have multiple renal arteries. Severe stenosis in one of the arteries may cause refractory hypertension. The detection of stenosis wi