Critical care ultrasonography in nursing for critical patients
Zhang Qing1，Sun Jianhua1，Liu Lixia2，Guo Na2，Shi Dongyan3，Cao Lan4，Liao Tianzhi5，
Clinical Focus . 2017, (5): 392 -394 .  DOI: 10.3969/j.issn.1004-583X.2017.05.004