Alright,
This is a Google books result. Just give "Dascor MDA" in the search box and you will find
" Motion Preservation Surgery of the Spine " by James J. Yue, Rudolph Bertagnoli, Paul C. McAfee, Howard S. An
"Page 401" specifically talks about Dascor and MDA & the study conducted
Motion Preservation Surgery of the ... - Google Book Search
Hope the above works.