What was likely said next? Dialog:
 Person A) What is the incurable nature of melanoma?.
 Person B) Scientists have wondered how melanoma cells travel from major tumors found on the surface of the skin to the liver, brain, lungs and other organs where they become very destructive, resistant to treatments and even cause death..
 Person A) Are there any other interesting aspects about this article?.
 Person B) Research being conducted tries to answer the question of how and why melanoma cells become defective and cause harm to people..
 Person A) What have been some of the findings of the research?.
 Person B) 
Many studies have found that some classes of short strands of RNA, called microRNAs, are linked to these harmful properties of melanoma cells.