Abstract. Since the introduction of the ultrasonic aspirator developed and adapted for neurosurgery by the Cooper Scientific Corporation over the past decade, the instrumentation has gained wide acceptance in the removal of certain central nervous system tumors.
The majority â 70 percent â of Americans explained the reason they did not regret opening a store credit card during the holiday shopping season was because they received a large discount on their original purchase. Although shoppers may feel bullied, they are also sympathetic for the position the store clerk is in.
It is thought that approximately 10 percent of American adults have a problem with drugs or alcohol, and an estimated 20 percent of patients seen by family physicians have substance-abuse problems, excluding tobacco use.t is thought that approximately 10 percent of American adults have a problem with drugs or alcohol, and an estimated 20 percent of patients seen by family physicians have substance-abuse problems, excluding tobacco use.