例句 /

Objective To investigate digital substractionangiography of the acute and chronic jejuno ilel intestine hemorrhage,and to improve its clinical application.

Objective To investigate digital substractionangiography of the acute and chronic jejuno ilel intestine hemorrhage,and to improve its clinical application.

目的探讨急慢性空回肠出血患者的DSA检查,进一步提高其临床应用价值。