Comparison of ultrasound-guided biopsy techniques for level IV lymph nodes: semiautomatic vs. Menghini modified needles in a retrospective dual-center study. - Gang Liu; Yixin Zhu; Guoru Wu; Guangyin Yu; Hao Luo; Lu Pang 009; Qiongxian Long; Lin Zhu; Yu Shi (BMC Medical Imaging, 2026)