Thank you so much for your prompt reply. It is good to hear that I did not miss anything before shooting you a question. I do appreciate your and your group's effort on this. Thank you.
I just recently got a permission to access to SHHS database.
After downloading and browsing the database, I still could not get to what I expect to see so that I would like to ask a question regarding to this database as followed:
The data that I am mainly interested is: polysomnography data and the sleep apnea related annotations (ie., respiratory event annotations, hypopnea, obstructive apnea, central apnea). The polysomnography data is obviously the edf file. However, for the annotation file(s), I could only find the sleep stage annotation. Could you please clarify whether there is anyway I can access to all other annotations ? It seems that there should be another xml annotation file cooperating with the edf file but I could not find it anywhere in the database. Thank you so much.