11 restrictions on research into some 64 substances that could be used in biological weapons.
Laboratories do not grind up pills for resistance testing because they contain substances that could lead to unreliable results.
None, however, tested positive for steroids or the hormone erythropoietin (EPO), only for banned substances that could have plausibly, as they claimed, been caused by accidental contamination.
Cancers were understood to be malignant neoplasms, caused by uncontrollably dividing cells, and Farber was looking for substances that could target and check that division.
Rather than using artificial testosterone-like substances that could be spotted using the immunoassay test, athletes had switched to using natural testosterone instead.
Forensic toxicologists evaluate organs and bodily fluids to determine the presence of any substances that could have caused or contributed to death, such as drugs or poisons.
So they are looking for substances that could degrade over time, to be replaced by the matrix produced by the chondrocytes.
The F.D.A. already considers it illegal to sell food containing any bacteria, including toxic forms of E. coli or other substances that could make people sick.
Other online drug stores said they would soon sell substances that could circumvent the measures recently rushed through parliament to make mephedrone and its related compounds a Class B substance.
The site of the complex, owned by AvalonBay Communities of Princeton, had more than 30 substances that could accelerate a fire, but all were legal and necessary for construction of the buildings, the investigators found.
Dr. Nicholas E. DeRobertis, director of emergency services at St. Joseph's Medical Center, said the list of substances that could provoke such a reaction was "pretty extensive," including certain antibiotics and food preservatives.
