the Pfizer-BioNTech COVID-19 Vaccine
for use in children 5-11 years of age uses tromethamine (Tris) buffer instead of the phosphatebuffered saline (PBS) as used in the previous formulation and excludes sodium chloride and potassium chloride. 我不知道为什么把PBS改成Tris。(这两个都是pH buffer, 用来保持酸碱平衡)。 但是回答我一个简单的问题, Tris怎么可以治心肌炎?哪儿有说?