5.1 Overview of Basic Experimental Design5.2 Aseptic Technique5.3 Biological Sample Collection, Processing, and Pretreatment Technology5.4 Sample Storage5.5 Common In Vitro Studies in Toxicology/Pharmacology5.6 Common In Vivo Studies in Toxicology5.7 Basic Advantages and Disadvantages Associated with Sample Types5.8 Human Epidemiology Studies5.9 Examples of Tox‐ and Pharm‐Based Experiments Relevant to Signal Transduction Endpoints5.10 Coupling Experimental Results Within the Larger Literature Framework to Generate InformationReferences