1.Yang PC, Luh KT, Chang DB,et al. Value of sonography in determining the nature of pleural effusion: analysis of 320 cases.AJR Am J Roentgenol 1992; 159: 29-33.2.Weingardt JP, Guico RR, Nemcek AA, Li YP, Chiu ST. Ultrasound &xFB01;ndings following failed (共 5511 字) [阅读本文] >>