Chemotherapy is not given at M. D. Anderson during the first trimester of pregnancy, when vital organs are still forming and the risk of birth defects is highest.
安德森医学博士在第一个三个月孕期内没有给孕妇化疗，这时期是胎儿的重要器官形成期，出生缺陷的风险是最高的。
Instances where PTU is recommended over MMI include the initiation of therapy in the first trimester of pregnancy or in the setting of life-threatening thyrotoxicosis or thyroid storm.
大量的例证表明PTU比MMI更多的推荐用于作为妊娠头三个月的初始治疗或危及生命的甲状腺毒症或甲亢危象的治疗。
By the third trimester of my first pregnancy my goal was to keep my weight gain equal to my week which would have made me 27 pounds heavier at this point.
我第一次怀孕的后期，我的目标是保持我的体重增加跟怀孕的周数等同，这就是说到这个时候我已经增重了27磅。
Case Study: a woman in the first trimester of a pregnancy aborted her fetus before dying from rhubarb poisoning herself.
案例：一个怀胎三个月的女人先是堕了胎，而后因为吃大黄花叶自己也中毒身亡。
The first trimester is an important time in your pregnancy, especially in terms of nutrition.
妊娠初期，尤其是在营养方面，对孕妇来说是非常重要的。
Even during the earliest part of your pregnancy, the first trimester, you will be gaining some weight.
甚至在怀孕的最初时期，即妊娠早期，孕妇也会增加一些体重。
Weight gain during the second and third trimesters of pregnancy is going to be more steady after the first trimester.
在怀孕的第二第三阶段，体重增加相对最初阶段变得稳定。
Despite the paucity of data -related to the use of influenza vaccines during the first -trimester of pregnancy, other inactivated vaccines (e.g. -tetanus) have proved safe in this context.
虽然目前关于在妊娠初期3个月内使用流感疫苗的资料还很少，但有其他灭活疫苗(如破伤风疫苗)已被证明在此期间可以安全使用。
AIM: To prepare highly purified human trophoblast cells from human placentae at the first trimester of normal pregnancy for further study on the function of human placentae villi.
目的：培养纯度较高的人绒毛膜滋养层细胞，为胎盘绒毛在妊娠期间的作用及其机制研究提供细胞学基础。
AIM: To prepare highly purified human trophoblast cells from human placentae at the first trimester of normal pregnancy for further study on the function of human placentae villi.
目的：培养纯度较高的人绒毛膜滋养层细胞，为胎盘绒毛在妊娠期间的作用及其机制研究提供细胞学基础。
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