pubmed query bugfix

Author: chreman

server/workers/api/src/apis/pubmed.py

@@ -97,7 +97,7 @@ def get(self):
 def sanitize_params(params):
     article_types = params.get("article_types")
     if article_types:
-        [at.replace("\'", "'") for at in article_types]
+        article_types = [at.replace("'", "'") for at in article_types]
         params["article_types"] = article_types
     return params