The following Markers  are considered within the  Endocrine Module, as detailed in the Laboratory Guidelines  for the  Analytical Requirements for the Endocrine Module of the Athlete Biological Passport  (see Section 3.4 below):         ABP Operating Guidelines  – Version 9.0 – July 2023  Page 8/91 − GH-2000 Score − IGF-I: Insulin -like Growth Factor -I  − P-III-NP: N-terminal Pro-peptide of T ype III C ollagen 2.2.