40
Participants
Start Date
November 30, 1994
Primary Completion Date
February 28, 1999
Study Completion Date
February 28, 1999
Neural implantation group
Cultured mesencephalic tissue from four embryos was implanted into the putamen bilaterally for those receiving the implant
Sham surgery
Steel frame affixed to head and four burr holes drilled into forehead of sham surgery patients
Morgridge College of Education, University of Denver, Denver
University of Denver
OTHER