医疗服务板块1月12日涨1.96%，迪安诊断领涨，主力资金净流出5.95亿元

Group 1 - The medical services sector increased by 1.96% on January 12, with Di'an Diagnostics leading the gains [1] - The Shanghai Composite Index closed at 4165.29, up 1.09%, while the Shenzhen Component Index closed at 14366.91, up 1.75% [1] - Di'an Diagnostics saw a significant rise of 19.98%, closing at 26.06, with a trading volume of 533,500 shares and a transaction value of 1.376 billion [1] Group 2 - The medical services sector experienced a net outflow of 595 million from institutional investors, while retail investors saw a net inflow of 666 million [2] - Key stocks such as Jin Yu Medical and Di'an Diagnostics had notable net inflows and outflows from different investor types [3] - Jin Yu Medical had a net inflow of 181 million from institutional investors, while Di'an Diagnostics had a net inflow of 148 million [3]