The present invention provides systems and methods for enabling a consumer to acquire media content items. The marker for determining sensitivity to an anti-cancer agent is formed of one or more substances selected from the group consisting of a substance or a fragment thereof detected as an anion at mz of 149. A ribbon-shaped surface-property-modifying sheet including a surface-property-modifying region for modifying the surface of the protective layer is moved, and the protective layer is aligned with the surface-property-modifying region of the surface-property-modifying sheet. An automated controller and an automated constricting device may be provided for applying CPR to the recipient in an automated fashion.