Discuss the effects of ergonomic design on the effectiveness of the electronic health record (EHR). How can location and types of equipment, layout of the nursing unit, structure, size and function of the nursing unit and patient rooms positively and negatively affect the use of informatics and EHR? Describe the nursing informatics role in successful ergonomic design. How does a well-designed clinical information system promote safe, quality, and cost-effective health care? Cite at least two professional references.