La firma del acuerdo comercial MERCOSUR-UE en 2019, en la cumbre del G20, ha expandido el alcance global del bloque comercial sudamericano como un actor multilateral y representa el mayor acuerdo comercial jamás logrado por la Unión Europea y el MERCOSUR. El propósito de este artículo es analizar brevemente los detalles del acuerdo, así como las motivaciones que llevaron a su firma después de un período de 20 años de negociaciones intermitentes. También intentamos contextualizar este acuerdo con otros TLC que la UE ha llevado a cabo en las Américas durante la última década, como el TTIP, el CETA y el Acuerdo Comercial UE-México. Argumentamos que esos nuevos acuerdos mega-regionales, aunque arraigados en escenarios de beneficio mutuo, compiten por establecer nuevas reglas de comercio internacional.
Avascular bone necrosis is a very rare pathological entity that can appears in an primary way or a secondary one due to diverse factors. It can be found in a few levels, especially in the femoral head and the carpal navicular bone in the adult patient. If the lession is located in the femoral head leads to a hip pain, a very frequent clinical manifestation studied in Primary Health Care centers, so it is very important its early and differential diagnosis, above all, in the case that exist risk factors. We present a clinical case of avascular necro s i s of the femoral head and perform a current bibliographic revision on the matter.
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