The Long-term Medical Holographic program (LMH) was a project in development by Lewis Zimmerman in which a holographic doctor would be designed to operate as a medical practitioner on a long-term basis in a location or situation where a person could not. Zimmerman decided to continue with the LMH project, although it was still in the planning stages in 2375 and Zimmerman was more focused on perfecting the EMH Mark Two. (DS9 short story: "So a Horse Walks into a Bar...")