Clinical Information Discusses physiology, pathophysiology, and general clinical aspects, as they relate to a laboratory test. Carcinoembryonic antigen (CEA) is a glycoprotein normally found in embryonic entodermal epithelium.
Europe's Coldest Cities in Summer. Europe's northernmost city has the continent's coolest summers. No other major city stays anywhere as tepid as ReykjavÃ­k, Iceland, where maximum temperatures average a meagre 12.7 degrees Celsius (54.8 degrees Fahrenheit). That's over five degrees Celsius (10 Â°F) lower than the next coldest city, Leeds.
Crowds. July and August are the most popular months to visit Europe, when many Americans and Europeans take advantage of their vacation days and fine weather. August is especially crowded, as both French and Italians pour into Europeâs seaside areas and major cities during their annual month off from work.