German study exposes dangers of CO2 re-breathing
MASK TOXICITY - German study exposes dangers of CO2 re-breathing - neuron death & learning impairment (children), stillbirths & birth defects (pregnant women), testicular toxicity (adolescents)
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MASK TOXICITY - German study exposes dangers of CO2 re-breathing - neuron death & learning impairment (children), stillbirths & birth defects (pregnant women), testicular toxicity (adolescents)