An in vivo assay to measure anchorage-independent growth and phenotypic stability of a certain cell population comprising subcutaneous or intramuscular injection in a mammal of a cell suspension of articular chondrocytes in an iso-osmotic liquid, the same suspension comprising articular chondrocytes in an amount equivalent to at least 1\xd7106 chondrocytes as applied to immune-deficient mice. The mounting bracket is configured for mounting the parking brake actuator to a vehicle. If the identity check indicates that it is authorized for programming, reprogramming is performed using a programming device provided in the control unit itself. Each of the resulting colors of each cell is calibrated to generate a printable color. The superabrasive precursor can be formed by dissolving hexagonal carbon in a suitable molten metal or by mixing particulate components. Exemplary embodiments provide methods for assembling wearable automatic injection devices for subcutaneously injecting a therapeutic agent into a patient’s body at controlled rates.