The authors found that without vertical integration, at least some GP practices would have been forced to close down, which would have increased the pressure on remaining practices in the vicinity and forced patients to travel further to receive care. By interviewing GPs, NHS managers, and other staff, 52 people in all, at two locations in England and one in Wales, the evaluation concluded that through vertical integration these practices were also increasingly able to offer patients the opportunity to consult a range of health care professionals at the local practice, not just GPs, but also staff with special training to provide specific types of health care, for example, for diabetes or for problems with joint pain.