A chest CT scan is a more detailed type of chest x ray that takes many detailed pictures of your lungs and the inside of your chest.
Greece fell when the Roman Empire envaded Greece and changed their religion. Wasnt a good Idea though. I'll Say! I mean even though it was reletively the same, same gods different names, and the same legends, just from a different point of view.
See Snow and Christmas as well as my page for Traveling to Greece in the Winter and Off-Season Travel in Greece. February can be cool with periods of rain but it can also be what they call the halcyones which is an extended period of spring-like weather when even going for a swim is a tempting idea.