SEARCH Articles Figures Tables Directed lattice Lattice Directions Lattice direct PROTON SPIN RELAXATION Proton relaxation Proton relaxation times Proton relaxivity Proton spin-lattice relaxation Proton spin-lattice relaxation time Proton spins Proton times Protons spinning Relaxation times spin-lattice Spin direction Spin lattice Spin-lattice relaxation Spin-relaxation times