London Hospital has a collection of human tissue obtained from 1908 to 1918.

That way I would have tissue obtained before chemotherapy altered the cancer cells.

Surgery plays a critical role in obtaining tissue to make an accurate diagnosis.

Even so, forensic workers can often obtain usable tissue by cutting into deep muscle.

It is important to obtain fresh tissue, whenever possible, for cytogenetics and molecular pathology.

Second, and quite important, the panel never agreed it is "morally acceptable" to use human fetal tissue obtained from abortions.

Duchenne was the first who did a biopsy to obtain tissue from a living patient for microscopic examination.

Tests to be sure involve surgery to obtain tissue and would not be warranted in this case, experts said.

For known tumors, this biopsy is performed to assess the effect of treatment or to obtain tissue for special studies.

Furthermore, castrations were approved in order to obtain testicular tissue for research purposes.