SEARCH Articles Figures Tables Formal protons, spin-lattice relaxation times PROTON SPIN RELAXATION Phenyl proton spin-lattice relaxation times Proton relaxation Proton relaxation times Proton relaxivity Proton spin-lattice relaxation Proton spin-lattice relaxation time direction Proton spin-lattice relaxation time rotating frame Proton spins Proton times Protons spinning Relaxation times spin-lattice Spin lattice Spin-lattice relaxation Spin-relaxation times