Australian healthcare technology start-up Heidi has secured US$65 million in a new funding round, as it aims to expand its workforce and establish offices in Hong Kong and Singapore to capitalise on the growing demand for medical artificial intelligence technology in the region.The company is valued at US$465 million following its series B round announced on Monday, led by Point72 Private Investments, a global alternative asset manager.The six-year-old start-up planned to build a team of about...