Does Procellera® Antimicrobial Wound Dressing Help Injuries Heal Faster? Researchers

Multiple Choice

Does Procellera® Antimicrobial Wound Dressing help injuries heal faster? Researchers checked records of 38 patients who had been treated for acute or chronic wounds between 2010 and 2012. They found that those who had been treated with Procellera® healed almost twice as fast. This is a

A) retrospective study
B) survey
C) prospective study
D) matched experiment
E) randomized experiment