2617831 EARR external apical root resorption 150 2617833 EARR extended aortic root replacement 2 2617836 EARR environment-aware adaptive reinforcement routing 1 2617835 EARR enzyme activity retention ratio 1 2617834 EARR estimating annual risk of rupture 1 2617837 EARR Evaluation of Auditory Reward Response 1 2617832 EARR external-induced apical root resorption 1