T. Bhuiyan, Y. Xu, and A. Josang, State-of-the-Art Review on Opinion Mining from Online Customer's Feedback, the 9th Asia-Pacific Complex Systems Conference, 2009.

S. C. Ratzan, ???Social??? Communication Age in Health, Journal of Health Communication, vol.16, issue.8, pp.803-807, 2011.
DOI : 10.1080/10810730.2011.610220

M. Swan, Emerging Patient-Driven Health Care Models: An Examination of Health Social Networks, Consumer Personalized Medicine and Quantified Self-Tracking, International Journal of Environmental Research and Public Health, vol.6, issue.2, pp.492-525, 2009.
DOI : 10.3390/ijerph6020492

L. Lilien and B. Bhargava, Trading privacy for trust in online interactions, Idea Group, 2008.

A. Josang, W. Quattrociocchi, and D. Karabeg, Taste and Trust, Fifth IFIP International Conference on Trust Management, 2011.
DOI : 10.1007/978-3-642-22200-9_25

E. Gray, J. M. Seigneur, Y. Chen, and C. Jensen, Trust propagation in small worlds, Trust Management, p.1072, 2003.

W. Shu and Y. H. Chuang, The perceived benefits of six???degree???separation social networks, Internet Research: Electronic Networking Applications and Policy, pp.26-45, 2011.
DOI : 10.1108/10662241111104866

E. Barnett, Facebook cuts six degrees separation to four In: The TelegraphFacebook- cuts-six-degrees-of-separation-to-four, 2011.

J. Hou and M. Shim, The Role of Provider???Patient Communication and Trust in Online Sources in Internet Use for Health-Related Activities, Journal of Health Communication, vol.34, issue.sup3, pp.186-99, 2010.
DOI : 10.1038/sj.bjc.6600798

N. Tustin, The Role of Patient Satisfaction in Online Health Information Seeking, Journal of Health Communication, vol.17, issue.1, pp.3-17, 2010.
DOI : 10.1080/10810730500228961

J. Pickens, Attitudes and perceptions, In: Borkowski, N. Organizational behavior in health care, pp.43-76, 2005.

M. J. Ferguson and J. A. Bargh, Beyond the attitude object: Automatic attitudes spring from object-centered-objects, pp.216-246, 2007.

S. Moturu and H. Liu, Quantifying the trustworthiness of social media content, Distributed and Parallel Databases, vol.20, issue.5, 2010.
DOI : 10.1007/s10619-010-7077-0

X. Su and T. M. Khoshgoftaar, A Survey of Collaborative Filtering Techniques, Advances in Artificial Intelligence, vol.46, issue.2, 2009.
DOI : 10.1002/asi.10372

F. Walter, S. Battiston, and F. Schweltzer, A model of a trust-based recommendation system on a social network, Autonomous Agents and Multi-Agent Systems, vol.293, issue.1, pp.57-74, 2008.
DOI : 10.1007/s10458-007-9021-x

M. Lopez-nores, Y. Blanco-fernandez, J. J. Pazos-arias, and R. P. Diaz-redondo, Property-based collaborative filtering: A new paradigm for semantics-based, health-aware recommender systems, 2010 Fifth International Workshop Semantic Media Adaptation and Personalization, 2010.
DOI : 10.1109/SMAP.2010.5706859

N. Dokoohadi and M. Matskin, Personalizing Human Interaction through Hybrid Ontological Profiling Cultural Heritage Case Study, International workshop on Semantic Web Applications and human aspects (SWAHA), collocated with 3 rd Asian Semantic Web Conference (ASWC), pp.133-140, 2008.

J. Goudge and L. Gilson, How can trust be investigated? Drawing lessons from past experience, Social Science & Medicine, vol.61, issue.7, pp.1439-51, 2005.
DOI : 10.1016/j.socscimed.2004.11.071

P. Victor, M. De-cock, and C. Cornelis, Trust and Recommendations (Eds) Recommender Systems Handbook, 2011.

A. Josang and S. Pope, Semantic constraints for trust transitivity, pp.59-68, 2005.

J. Golbeck, Computing and applying Trust in web-based Social Networks, 2005.

E. Meyer, Meeting the needs of difficult dental patients, clear communication and careful preparation can help moderate stressful situations, Inside Dental Assisting, vol.10, issue.5, 2012.

S. Pradhan, V. Gay, and S. Nepal, Social Networking and Dental Care: State of the Art and Analysis of the Impact on Dentists, Dental Practices and their Patients, BLED 2013 Proceedings . Paper, 2013.

A. Sbaraini, S. M. Carter, W. Evans, and A. Blinkhorn, Experiences of dental care: what do patients value?, BMC Health Services Research, vol.14, issue.4, p.177, 2012.
DOI : 10.1007/BF00867176

C. Yarascavitch, G. Regehr, B. Hodges, and D. A. Haas, Changes in Dental Student Empathy During Training, Journal of Dental Education, vol.73, issue.4, pp.509-517, 2009.

G. K. Merijohn, J. D. Bader, J. Frantsve-hawley, and K. Aravamudhan, Clinical Decision Support Chairside Tools for Evidence-Based Dental Practice, Journal of Evidence Based Dental Practice, vol.8, issue.3, pp.119-132, 2008.
DOI : 10.1016/j.jebdp.2008.05.016

T. G. Mettes, W. J. Van-der-sanden, H. G. Mokkink, M. Wensing, R. P. Grol et al., Routine oral examinations in primary care: Which predictors determine what is done?, Journal of Dentistry, vol.36, issue.6, pp.435-443, 2008.
DOI : 10.1016/j.jdent.2008.02.017