Qian, Z.-W., Wan, G.-S., Du, X.-L., Shi, Y.-F., & Huang, G. (2018). Performance Evaluation of Digital Marketing in Health Care Industry with the Application of Data Envelopment Analysis. Revista de Cercetare Si Interventie Sociala, 60, 39-50. https://www.rcis.ro/journal/article/view/2417-performance-evaluation-of-digital-marketing-in-health-care