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MS of laboratory technician (woman) carrying rat in box, walking past large cylindrical equipment, other laboratory technician (man) following. HACS of woman putting live rat in open end of cylindrical equipment. MS of laboratory technician inoculating live rat using syringe. CS of hand picking up sample from dish using tweezers and putting it on top of burner, hand adjusting knob. LACU of laboratory technician (woman) at work. CU of hand manipulating device shearing off heated sample most probably to fit microscope slide.