HERZLIYA, Israel--(BUSINESS WIRE)--Tissera, Inc. (OTCBB:TSSR) reports that Prof. Yair Reisner and his research team from the Weizmann Institute of Science published an article in the December 12, 2006 issue of PNAS (Proceedings of the National Academy of Sciences) entitled "Correcting Monogenic Diseases by Fetal Spleen Transplantation: Hemophilia as a Proof of Concept". The study may be obtained in PDF form from the PNAS website, www.pnas.org.