Recombinant nucleic acid molecules are constructed with a first sequence encoding a transgene under the control of regulatory sequences that direct expression of the transgene product in a hematopoietic stem cell, or a progenitor cell therefrom or cell differentiated therefrom. An executable software component, such as system firmware, may access a voltage selection value embedded in the component and retrieve a voltage setting, from a table of voltage settings, using the embedded voltage selection value as an index. The wound contact portion is configured to contact tissue of the wound when at least a portion of the retractor is inserted through a skin incision that defines the wound. A performance impact indicator associated with the one or more samples is generated. These seleno-compounds may be used in the treatment of diseases or conditions associated with increased levels of oxidants produced by myeloperoxidase, such as for instance, atherosclerosis and diabetes. The above-described contact hole formation method allows a thickness of the BPSG film 4 to be uniform irrespective of the density of the gate electrodes, whereby an etching rate becomes uniform over the entire area of the semiconductor device.