. 2017 Jun 12;3:25–38. doi: 10.1016/j.clinms.2017.06.002
© 2017 The Authors. Published by Elsevier B.V. on behalf of The Association for Mass Spectrometry: Applications to the Clinical Lab (MSACL).
This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).
Fig. 4.
Alternative method comparison, response ratios.