A randomized, controlled trial was designed to compare high-and low-osmolar contrast media.
A randomized, controlled trial was designed to compare high-and low-osmolar contrast media.
本组随机对照试验就高渗和低渗两种造影剂进行对比。
A randomized, controlled trial was designed to compare high-and low-osmolar contrast media.
本组随机对照试验就高渗和低渗两种造影剂进行对比。