fixed #741

matthiaskoenig · Dec 7, 2022 · 44ece6e · 44ece6e
1 parent 171294f
commit 44ece6e
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/backend/pkdb_app/info_nodes/models.py b/backend/pkdb_app/info_nodes/models.py
@@ -173,6 +173,7 @@ class MeasurementType(AbstractInfoNode):
     CAN_NEGATIVE = [
         "tmax",  # tmax can be negative due to time offsets, i.e. pre-simulation with subsequent fall after intervention
         "concentration change",    # this often happens in placebo simulations
+        "concentration change absolute",
         "EHR change",
     ]
     ADDITIVE = []  # todo remove