Update fetch_title regex for title extraction and modify main execution to fetch paper data by PMC ID

fetch_paper_data.py

@@ -67,8 +67,7 @@ def fetch_citation(doi):
 def fetch_title(doi):
     title_content = requests.get(doi, headers={ 'User-Agent':HEADERS['User-Agent'], 'Accept': 'text/x-bibliography; style=bibtex'}).content
     bibtex_entry = title_content.decode('utf-8').strip()
-    print(bibtex_entry)
-    title = re.search(r'title\s*=\s*{(.*?)},\s+url', bibtex_entry)
+    title = re.search(r'title\s*=\s*{(.*?)},\s+', bibtex_entry)
     print(title)
     if title:
         return title.group(1).strip()
@@ -98,5 +97,5 @@ def fetch_paper_data(id):
     return json.dumps(data, indent=4, ensure_ascii=False)
 
 if __name__ == '__main__':
-    data = fetch_paper_data('2412.20276')
+    data = fetch_paper_data('PMC11577001')
     print(data)