A somatic stem cell that is CD10+, CXCR4+, and CD31+ and another somatic stem cell that is CD105+, CD44+, and nestin+. The light emitting diode module includes a printed circuit board and a light emitting diode joined thereto through a solder paste. It has a circular, upward-projecting overhang, which forms a pouring spout. Field curvature is largely corrected by a steeply curved concave surface relatively close to the image plane. The side defroster little impairs the unity of interior decorations, exhibits a high defogging efficiency, and can secure a satisfactory air delivery rate for the defogging air.