On Wednesday morning, Yan Feifan performed his usual two intrathecal tumor puncture and injection surgeries.
Afterward, he took Yu Beihua to the neurosurgery lab. There, along with Dr. Qiu Ge and her assistants, he dissected two test monkeys and several white mice that had undergone infrasound resonance testing.
To their delight, the dissection again revealed no signs that the previous infrasound resonance tests had caused any brain damage.
The last lucky test monkey and a few white mice would be kept for long-term observation.
They would be monitored to see if the infrasound resonance tests had any potential long-term effects on their brains.
By Thursday morning, Yan Feifan had performed brain tumor puncture and injection surgeries on patients brought in by Qin Feng and Dr. Kevin Vega from the United States.
In the afternoon, Yan Feifan returned to the neurosurgery department.
