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An industry adage held that “there are two types of rental car companies: those that lose money and Enterprise.” The company that would become Enterprise Rent-A-Car was started in 1957 in St. Louis, Missouri, by Jack Taylor. Taylor set up Enterprise offices in neighborhoods rather than at airports because he believed that Americans would welcome a local option for renting cars when their own vehicles were being repaired. In 2010 Enterprise had more than 6,000 rental locations in the United States and a fleet of 850,000 cars in service. Its parent, Enterprise Holdings (comprising Enterprise, National, and Alamo brands) accounted for nearly half of the car rental market and was more than twice the size of Hertz, the number two competitor. Enterprise's competitive advantage was the result of the combination of its practices in hiring, training, compensation, organization, customer service, IT, and fleet management, among others.

The purpose of this study is to introduce new tools to develop a more precise and focused bibliometric analysis on the field of digitalization in healthcare management. Furthermore, this study aims to provide an overview of the existing resources in healthcare management and education and other developing interdisciplinary fields.

This work uses bibliometric analysis to conduct a comprehensive review to map the use of the unified theory of acceptance and use of technology (UTAUT) and the unified theory of acceptance and use of technology 2 (UTAUT2) research models in healthcare academic studies. Bibliometric studies are considered an important tool to evaluate research studies and to gain a comprehensive view of the state of the art.

Although UTAUT dates to 2003, our bibliometric analysis reveals that only since 2016 has the model, together with UTAUT2 (2012), had relevant application in the literature. Nonetheless, studies have shown that UTAUT and UTAUT2 are particularly suitable for understanding the reasons that underlie the adoption and non-adoption choices of eHealth services. Further, this study highlights the lack of a multidisciplinary approach in the implementation of eHealth services. Equally significant is the fact that many studies have focused on the acceptance and the adoption of eHealth services by end users, whereas very few have focused on the level of acceptance of healthcare professionals.

To the best of the authors’ knowledge, this is the first study to conduct a bibliometric analysis of technology acceptance and adoption by using advanced tools that were conceived specifically for this purpose. In addition, the examination was not limited to a certain era and aimed to give a worldwide overview of eHealth service acceptance and adoption.