Complex sentence: Some research has shown aspirin may not be the only medication associated with Reye, and even antiemetics have been implicated, with the point being the link between aspirin use in children and Reye syndrome development is weak at best, if not actually nonexistent.
Split into simpler sentences: Some research has shown aspirin may not be the only medication associated with Reye, and even antiemetics have been implicated. The link between aspirin use in children and Reye syndrome development is weak at best, if not actually nonexistent.