diff --git a/Mapping to LSRs/Mental Health Ontology mapping to LSRs.csv b/Mapping to LSRs/Mental Health Ontology mapping to LSRs.csv
index 0e998f8..82ce317 100644
--- a/Mapping to LSRs/Mental Health Ontology mapping to LSRs.csv	
+++ b/Mapping to LSRs/Mental Health Ontology mapping to LSRs.csv	
@@ -576,3 +576,4 @@ LSR3_taar1_H/data/data_2024-01-22_LSR3_H.xlsx,https://doi.org/10.5281/zenodo.108
 ,,2,,EXEaug2,Exercise complemented with treatment as usual or therapy,GMHO:0000125,intervention content,A planned process that is part of an intervention and is intended to be causally active in influencing its target outcome or outcomes.,planned process,Intervention content and delivery
 ,,2,,EXEaug2,Exercise complemented with treatment as usual or therapy,GMHO:0000123,intervention arm,A study arm that is subject to evaluation in an intervention evaluation study.,study arm,Intervention content and delivery
 ,,2,,intervLENGTH,Intervention duration (weeks),GMHO:0000005,intervention duration,A temporal interval between the start and end of an intervention.,one-dimensional temporal region,Intervention content and delivery
+,,2,,totNrandom,Number of participants randomised in study,GMHO:0000154,number of randomised intervention participants,Number of intervention participants who were randomly allocated to study arms within an intervention.,number of intervention participants,