Mid-Columbia Medical Center CEO Dennis Knox says it will take about 90 days for the due diligence process to take place on a proposed agreement to join Adventist Health.  MCMC announced last week it had signed a non-binding agreement with Adventist.  Knox says there is a lot of detail work to be done to reach a final deal.  He says if the agreement is finalized they would be a part of the Adventist Health system, but there would still be decision making taking place at the local level.  Knox says Adventist traditionally relies on local governance at their affiliate hospitals.  Knox noted they would like to make a decision on the agreement at MCMC’s Board of Trustees meeting on October 26, but he also noted there was no specific date placed in the letter of intent.