--- a
+++ b/code/add_AcquisitionDuration_T2star.py
@@ -0,0 +1,30 @@
+import json
+import pandas as pd
+import argparse
+import os
+import glob
+
+def get_parser():
+    parser = argparse.ArgumentParser(description='Add AcquisitionDuration in the JSON metadata for *_T2star.json from CSV file')
+    parser.add_argument('--input', help='Path to data-multi-subject')
+    parser.add_argument('--input-csv', help='Path to CSV file')
+    return parser
+
+def main(argv=None):
+    parser = get_parser()
+    args = parser.parse_args(argv)
+    os.chdir(args.input)
+    df = pd.read_csv(args.input_csv)
+    rows=[]
+    for file in glob.glob(os.path.join(args.input,"*/*/*_T2star.json")):
+        subject_name = (os.path.split(file)[1].split('_')[0])
+        value_AcquisitionDuration = df[df['Subject'].str.contains(subject_name) == True]['AcquisitionDurationManual'].values[0]
+        file_json = open(os.path.join(args.input,file))
+        data = json.load(file_json)
+        data_to_add = {"AcquisitionDuration": value_AcquisitionDuration}
+        data.update(data_to_add)
+        with open(os.path.join(args.input,file), 'w') as outfile:
+            json.dump(data, outfile, indent=4)
+
+if __name__ == "__main__":
+    main()
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