@articleHelmer2011, Author = {Helmer, Axel and Lipprandt, Myriam and Frenken, Thomas and Eichelberg, Marco and Hein, Andreas}, Title = {Empowering Patients through Personal Health Records: A Survey of Existing Third-Party Web-Based PHR Products}, Year = {2011}, Volume = {6(3)}, Number = {3}, Pages = {1-19}, Month = {01}, Isbn = {1446-4381}, Booktitle = {Electronic Journal of Health Informatics}, type = {article} @COMMENTBibtex file generated on