Wireless Mobile Communication and Healthcare Second International ICST Conference, MobiHealth 2011, Kos Island, Greece, October 5-7, 2011. Revised Selected Papers - Nikita,Konstantina S.; Lin,James C.; Fotiadis,Dimitrios I.; Arredondo Waldmeyer,Maria-Teresa (Lecture Notes of the Institute for Computer Sciences, Social-Informatics and Telecommunications Engineering Ser.)