The present invention provides an isolated microorganism strain, Lactobacillus paracasei GM-080, which is found to be effective in treating allergy. The level-shifting section provides an output logic signal at an output terminal. Each small lot size substrate carrier is adapted to hold fewer than 13 substrates. In addition, the rigid crossbeam and the travel rail comprise a first matched set, and are each removably coupled to the pair of end castings. This invention has the following advantages: accurate, easy to operate, time saving, economical, convenient, and multifunctional. The parallax image string pickup apparatus 1 includes a camera unit 32 screened from the object 31, and a half mirror 40 is arranged between the camera unit 32 and the object 31.