TY - RPRT TI - Magnetic resonance imaging biomarker calibration service: proton spin relaxation times AU - Boss, Michael A AU - Dienstfrey, Andrew M AU - Gimbutas, Zydrunas AU - Keenan, Kathryn E AU - Kos, Anthony B AU - Splett, Jolene D AU - Stupic, Karl F AU - Russek, Stephen E PY - 2018 PB - National Institute of Standards and Technology CY - Gaithersburg, MD SN - NIST SP 250-97 DO - 10.6028/NIST.SP.250-97 ER -