Hi, In a text about colon cancer it says "Later on, the choice of third-line may become critical. In this setting, while strong data support the use of EGFR-inhibitors,evidence suggesting potential benefit from retreating patients with EGFR-inhibitors is more shaggy or under investigation" What is it the meaning of "shaggy" in this sentence?? I have no idea!!! Here "retreating" = to treat again, isn't it? Thanks for your help!!