Apparatus for forming a lesion in body tissue includes a probe having an active region with an electrode for contacting tissue to be treated, and an inactive region including an insulative sleeve around a portion of the electrode. The method can effectively spray dry thick or viscous solutions or suspensions to provide small uniform particles. The invention can also enable monitoring of the display at a content display site of content that is provided by a content provider site over a network to the content display site. The invention also relates to methods of manufacturing such structure and to methods of using the same in vitro, ex vivo as well as in vivo. The reflecting device reflects light passing through the first lens or the second lens to the image sensing module. In another aspect, the present invention provides a many examples of tables and their function.