Complex sentence: In vitro studies show that tea tree oil is capable of killing MRSA in a laboratory setting, but studies have shown that it demonstrated little difference in rates of eradication when compared to traditional treatment with mupirocin.
Split into simpler sentences: In vitro studies show that tea tree oil is capable of killing MRSA in a laboratory setting. Studies have shown that it demonstrated similar rates of eradication when compared to treatment with mupirocin.