In research with human patients suffering from Parkinson's disease, fetal nerve cell transplants ________.
A) resulted in only sporadic, temporary improvements in motor control
B) improved motor control for periods of only 1 to 4 years
C) improved motor control for periods of 5 to 10 years
D) resulted in no improvement in motor control

Question

Quizplus · Accepted Answer

Fetal nerve cell transplants have been shown to improve motor control in Parkinson's patients for periods of 5 to 10 years, according to some studies.

In Research with Human Patients Suffering from Parkinson's Disease, Fetal