Top Stories for 2/18

This week: Mayo irks insurers by ceasing MA patient scheduling; Mercy locks down ICU after online attacks . Plus: VillageMD announces plans to buy chronic care management company Healthy Interactions .Links to the stories:Mayo Clinic halts scheduling of out-of-network Medicare Advantage patients'Baseless attacks' online trigger lockdown at Oklahoma hospital ICUVillageMD buys chronic care management company Healthy Interactions