Removing extra information after the journal title


I’m trying to remove extra information that sometimes follows the journal title such as subtitles or place of publication. Like this one for example

Matsumura, I., Tanaka, H., and Kanakura, Y. (2003) E2F1 and c-Myc in cell growth and death. Cell cycle (Georgetown, Tex.) 2, 333-338

I went to edit reference and removed the strikethrough part then updated my references and when I checked my references list, that part still there. Although this part is permenantly removed from the refernce.

I hope someone can help