[=l-tryptophan]l-色氨酸
[=laryngotracheal papilloma]喉气管乳头状瘤
[=laryngotracheoplasty]喉气管成形术
[=laser trabeculoplasty]激光帘成形术,激光小梁成形术
[=leukocyte thromboplastin]白细胞凝血(酶)致活酶,白细胞凝血激酶
[=loss of total pressure]总压力损失