The systemic toxic symptoms occurred in 2 cases at late course.

有2例甚至出现全身中毒症状。

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This spider has a very toxic drug, to a few days before toxic symptoms.

这蜘蛛具有很毒的毒性，要几天才出现中毒的症状。

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The fever drops, the toxic symptoms and poor appetite improve rapid after the drainage of abscess.

引流后体温迅即下降，中毒症状改善，食欲恢复。

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Your doctor will try to achieve a balance between controlling your symptoms while minimizing toxic effects from treatment.

CNN: Recurrent breast cancer

Dr. Sarah Janssen, a physician and scientist for the Natural Resources Defense Council, an environmental advocacy group, says that she frequently sees patients complaining of symptoms related to toxic levels of mold, lead, formaldehyde and tobacco smoke.

FORBES: Hidden Household Toxins

The symptoms of pre-eclampsia have been linked to the production of toxic molecules called free radicals by the placenta.

BBC: Vitamins 'could prevent pregnancy danger'