Ever wondered what the power symbol actually means? It’s more than just a button -- discover the surprising history behind ...

Upon papal election, popes sometimes modify them. The entire work combines two elements: symbols of the office and the personal coat of arms. Indicative of the office is the triple papal tiara ...

The author has completed the ICMJE form and declares no conflicts of interest. Article Selenium concentration in serum is determined at a few major clinical chemistry laboratories in Scandinavia.