ABBREVIATION for minimum lethal dose (the smallest amount of a drug or toxic agent that will kill a laboratory animal) 最低致命量; 杀死实验动物的最少毒药量
D. start with a 5 ml syringe and 22 gague need as a seeker needle.
首先使用5毫升注射器和22号针头做引导穿刺针。
Vitamin D inadequacy was defined as <32 ng/mL, vitamin D insufficiency was defined as 20 to <32 ng/mL, and vitamin D deficiency was defined at <20 ng/mL.
维生素D含量在32ng/mL左右为维生素D缺陷（inadequacy）， 20—32ng/mL为维生素D不足（insufficiency），低于20ng/mL为维生素D缺乏（deficiency）。
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