Authorities in the northern Portuguese city of Porto have discovered the body of a woman believed to have died two years ago in her flat, national media reported on Monday.The remains were found on January 21, according to Correio da Manhã newspaper and other outlets, citing local officials.The diabetic woman is thought to have died at the age of 73. The exact circumstances of her death are still unclear.The alarm was raised by a doctor at a health centre after the woman failed to attend...