Hearst has acquired a majority stake in MedHOK, Inc., a Tampa-based startup and software-as-a-service provider to the healthcare industry, the company announced yesterday. Terms of the deal were not disclosed, but upon the deal’s anticipated completion this summer, MedHOK will join Hearst Business Media’s healthcare information solutions group, which includes the companies FDB, Zynx Health, MCG, and Homecare Homebase.