In this informal forum to come, we invited Dr. Wei-Chih Liao(NTU Hospital) to introduce about 2 research questions that occurs  in real medical studies. Some cross-ocean participants will  share some perspectives through Skype. Participants are welcome  to share some possible medical or mathematical challenges.Anyone who are interesting in relative topics are welcome to join.People who are far away from the NCTS are also welcome to join the forum via Skype. Please contact Ms. Ejan Chen(02)33668816 ejanchen@ncts.ntu.edu.tw for participation via Skype.