The external links icon should not be present in the second line between the [ and the word Multiple:
The ref was originally created by the citoid service; I corrected the title by adding the original Japanese title and putting the English translation into the correct field. I also removed the (redundant) PubMed URL from the URL field.
I don't know whether this is a CS1 problem for @Trappist_the_monk to look at, a Parsoid problem, or something else.