diff --git a/redaction-service-v1/redaction-service-server-v1/src/main/java/com/iqser/red/service/redaction/v1/server/service/document/EntityCreationService.java b/redaction-service-v1/redaction-service-server-v1/src/main/java/com/iqser/red/service/redaction/v1/server/service/document/EntityCreationService.java
index 063b947c..f35f4ba8 100644
--- a/redaction-service-v1/redaction-service-server-v1/src/main/java/com/iqser/red/service/redaction/v1/server/service/document/EntityCreationService.java
+++ b/redaction-service-v1/redaction-service-server-v1/src/main/java/com/iqser/red/service/redaction/v1/server/service/document/EntityCreationService.java
@@ -183,6 +183,14 @@ public class EntityCreationService {
         return betweenTextRanges(startTextRanges, stopTextRanges, type, entityType, node);
     }
 
+    public Stream<TextEntity> shortestBetweenAnyStringIgnoreCase(List<String> starts, List<String> stops, String type, EntityType entityType, SemanticNode node, int limit) {
+
+        List<TextRange> startTextRanges = RedactionSearchUtility.findTextRangesByListIgnoreCase(starts, node.getTextBlock());
+        List<TextRange> stopTextRanges = RedactionSearchUtility.findTextRangesByListIgnoreCase(stops, node.getTextBlock());
+
+        return betweenTextRanges(startTextRanges, stopTextRanges, type, entityType, node, limit);
+    }
+
 
     public Stream<TextEntity> betweenRegexes(String regexStart, String regexStop, String type, EntityType entityType, SemanticNode node) {
 
@@ -203,14 +211,20 @@ public class EntityCreationService {
         return betweenTextRanges(startBoundaries, stopBoundaries, type, entityType, node);
     }
 
-
     public Stream<TextEntity> betweenTextRanges(List<TextRange> startBoundaries, List<TextRange> stopBoundaries, String type, EntityType entityType, SemanticNode node) {
 
+        return betweenTextRanges(startBoundaries, stopBoundaries, type, entityType, node,0);
+    }
+
+
+    public Stream<TextEntity> betweenTextRanges(List<TextRange> startBoundaries, List<TextRange> stopBoundaries, String type, EntityType entityType, SemanticNode node, int limit) {
+
         if (startBoundaries.isEmpty() || stopBoundaries.isEmpty()) {
             return Stream.empty();
         }
         List<TextRange> entityBoundaries = findNonOverlappingBoundariesBetweenBoundariesWithMinimalDistances(startBoundaries, stopBoundaries);
         return entityBoundaries.stream()
+                .filter(range -> (limit == 0 || range.length() <= limit))
                 .map(textRange -> textRange.trim(node.getTextBlock()))
                 .filter(textRange -> isValidEntityTextRange(node.getTextBlock(), textRange))
                 .map(textRange -> byTextRange(textRange, type, entityType, node))
diff --git a/redaction-service-v1/redaction-service-server-v1/src/test/resources/drools/all_rules.drl b/redaction-service-v1/redaction-service-server-v1/src/test/resources/drools/all_rules.drl
index ca0f34c2..8def8a55 100644
--- a/redaction-service-v1/redaction-service-server-v1/src/test/resources/drools/all_rules.drl
+++ b/redaction-service-v1/redaction-service-server-v1/src/test/resources/drools/all_rules.drl
@@ -974,6 +974,15 @@ rule "PII.9.3: Redact between \"AUTHOR(S)\" and \"STUDY COMPLETION DATE\" (verte
          .forEach(authorEntity -> authorEntity.apply("PII.9.3", "AUTHOR(S) was found", "Article 39(e)(2) of Regulation (EC) No 178/2002"));
     end
 
+rule "PII.9.4: Redact between \"AUTHOR(S)\" and \"STUDY COMPLETION DATE\" (vertebrate study)"
+    when
+        FileAttribute(label == "Vertebrate Study", value.toLowerCase() == "yes")
+        $document: Document(containsStringIgnoreCase("AUTHOR(S)"), containsStringIgnoreCase("STUDY COMPLETION DATE"))
+    then
+        entityCreationService.shortestBetweenAnyStringIgnoreCase(List.of("AUTHOR(S):","AUTHOR(S)"), List.of("STUDY COMPLETION DATE:","STUDY COMPLETION DATE"), "PII", EntityType.ENTITY, $document)
+         .forEach(authorEntity -> authorEntity.apply("PII.9.4", "AUTHOR(S) was found", "Article 39(e)(2) of Regulation (EC) No 178/2002"));
+    end
+
 
 // Rule unit: PII.10
 rule "PII.10.0: Redact study director abbreviation"