英语语法分析

MEDLARS stands for Medical Literature Analysis and Retrieval system, which was first introduced in 1964 and evolved into an online system in 1971 called MEDLINE (MEDLARS online).

MEDLARS代表医学文献分析和检索系统，最初于1964年引进并于1971年进展为联机系统，称之为MEDLINE (MEDLARS联机)。