1592952542000 1312632483000 term-2548 1616540984201 1312632487000 1616289724343 adlib fitz-online adlib-term-2548 0bf64d58-c0bf-301f-98c1-0c17e65ddf58 2 1 nuclear spin resonance nuclear spin resonance term reference term-2552 adlib-term-2552 1d606a0f-c1c3-34a4-bf50-df37387a589f nuclear magnetic resonance