[=left brow transverse position]左额横位(胎位)
[=louse-borne typhus]虱传斑疹伤寒
[=low back tenderness]腰(背)触痛
[=low back trouble]腰(背)疾病
[=lupus band test]狼疮带试验
[=lymphocyte blast transformation]淋巴母细胞转化
[=lymphocyte blastogenesis test]淋巴细胞转化试验