Devices, systems, and methods for accessing the internal and external tissues of the heart are disclosed. The adhesive is sufficiently weak that the dressing can be peeled from the skineven in the presence of body hairwith no pain. The mask is patterned by laser scribing to provide a patterned mask with gaps. The proxy operation implies that the intercepting node is capable of terminating some protocol elements, injecting some protocol elements, or modifying protocol elements before forwarding them in such a way that the operation is transparent to neighboring nodes. If the reproduced signal satisfies the predetermined reproduced signal quality, the reproduced signal quality judging section sets the trial recording parameters as a recording parameter. The subscriber station may determine which of the candidate base stations is least utilized.