Diana Stolz

Diana Stolz is not mentioned in either of the provided news articles. Therefore, it is impossible to provide a summary about her based on the given information. The articles discuss job cuts at Opel in Rüsselsheim and a new patient triage system at Bürgerhospital Frankfurt. Neither article contains any reference to a person named Diana Stolz, her background, or any recent events related to her. Consequently, her current relevance or significance cannot be determined from the provided context.