Results of a pending toxicology test for Whitney Houston could take several weeks to complete, leaving many to wonder: What exactly are toxicology tests, and why do the results take so long? Complete ...

Before a new drug hits the market, it must undergo years of rigorous preclinical testing and multiple phases of human trials, often involving hundreds or even thousands of patients. This highly ...

Evaluation and medical management of poisoning is often aided by laboratory tests. These range from basic analyses used ...

Preserve study integrity. Resist the temptation to bolt new exploratory endpoints midstream. If an additional endpoint is ...