A method of collecting a specimen of the present invention detects upper digestive system disease. The apparatus includes a cartridge supporting member supporting a plurality of cartridges and moving between a position inside a main body of the apparatus and a mounting and detaching position for mounting and detaching the cartridges. The apparatus is arranged with a patient support handlebar, which is arranged to be positioned in at least a first and a second position of which in the first position the patient support handlebar functions as a patient support handlebar and in the second position it has some other function. One of the pages is assigned to unshared memory. The steering column also includes a clamping mechanism disposed to selectively urge the first and second projections closer to one another to change a size of the first aperture.