The twenty-first century is called the era of science. In this century, scientists are making new life-changing discoveries every day. Vaccines and medicines are being made to prevent the most dangerous and deadly diseases. But amidst all this, there is always some fear regarding medicines and injections. Many times a person thinks what will happen if he accidentally takes some wrong medicine. Similarly, if an air bubble gets into our veins while giving an injection, what will happen? Will the person die or remain alive? A similar question was asked…
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