The invention is directed to a method for correcting the measuring results of a coordinate measuring apparatus wherein a workpiece is continuously scanned. The cutting apparatus includes a platform; a rail structure secured onto the platform; a sliding member sliding along the rail structure; a cutting member movably engaging with and carried by the sliding member to pass through and cut the sheet material sustained on the platform; and an adjusting member. A further aspect of the invention is concerned with pharmaceutical preparations employing the inventive analogs and methods of administering therapeutically effective amounts of the inventive analogs to provide a physiological effect.