The three-step change model and the continuous change model…

The three-step change model and the continuous change model differ from the positive change model and the action research model in that the three-step and continuous change models focus on the general process of planned change, rather than on specific OD activities.

Dr. Smith performed a major surgery related to stomach tumor…

Dr. Smith performed a major surgery related to stomach tumor. Since the operation requires assistant at surgery and the surgeon realized that no available resident is qualified to assist with this type of surgery. Dr. Johnson was called to assist. What is the appropriate modifier to use for Dr. Johnson?