To promote participation of and provide speaking opportunities to the participants, the ISBS Scientific Program Committee implements the following general guidance to all of speakers at ISBS 2019

1. Each speaker can present only one presentation per person in main conference and/or in regulatory symposium.
2. A speaker can also serve as a discussant or panelist in another session event in the same main conference or regulatory symposium in addition to his/her primary presentation.
3. The keynote speaker may be able to present more than one presentation or multiple discussion sessions.
4. There is no number limit as a co-author of other presentations, nor to serve as the session chairs and/or session organizers.