The Kevetrin presentation is a poster session. The authors stand in front of their poster which is thumb-tacked to a large board along with several dozen other posters and authors. The presentation is ASCO attendees walking by, stop, read, and ask about the poster. The authors answer the questions. The poster session is the main session that all posters vie for, the creme de la creme of the abstract submissions and selected poster topics. The other poster sessions are shorter and less prestigious.