1. Katz, S.J., Moyer, C.A.: The emerging role of online communication between patients and their providers. J Gen Intern Med 19, 978–983 (2004)
2. Moyer, C.A., Stern, D.T., Dobias, K.S., Cox, D.T., Katz, S.J.: Bridging the electronic divide: patient and provider perspectives on e-mail communication in primary care. Am. J. Manag. Care 8, 427–33 (2002)
3. Harris, Interactive/ARiA (2000): Marketing healthcare satisfaction study. Rochester, Atlanta: Harris Interactive, ARiA Marketing ( http://www.harrisinteractive.com/news/downloads/HarrisAriaHCSatRpt.PDF , accessed Oct 2005)
4. Kleiner, K.D., Akers, R., Burke, B.L., Werner, E.J.: Parent and physician attitudes regarding electronic communication in pediatric practices. Pediatrics 109, 740–744 (2002)
5. Sittig, D.F., King, S., Hazlehurst, B.L.: A survey of patient-provider e-mail communication: what do patients think? Int. J. Med. Inform. 61, 71–80 (2001)