Healthcare decision makers in search of the best evidence to inform clinical decisions have come to rely on systematic reviews (SRs) of comparative effectiveness research (CER) to learn what is known and not known about the potential benefits and harms of alternative drugs, devices, and other healthcare services. An SR is a scientific investigation that focuses on a specific question and uses e…
"Castilla del Oro" Golden Castile was the name Qgiven by Columbus to the Isthmus of Panama, in honor !f of Isabella, good queen of the old Spanish kingdom of of the Spaniards" the pioneers called it, who fought to . win the treasure from savage Indians, cruel pirates, and a deadly climate. "Key to the Pacific" some, too, have O named it As if, when Nature raised the broad continents CT of N…