Thousands of African migrants have swarmed to Spain as the authorities have made pleas to Madrid to declare a national emergency. A Spanish enclave in north Africa has been plunged into a social and humanitarian crisis after 1,500 migrants reached the city of Ceuta across from Morocco in the past week. In videos posted on social media, hundreds of people can be seen running up the beaches and hills of Ceuta. Ceuta is an autonomous city of Spain which borders Morocco. #morocco #Spain #Migrants #S

Pharmacology - HIV antiretroviral drugs (classes, mechanism of action and side effects)