Physical Review X ( Phys Rev X PRX ) bibliography style

After some searching, I found a fix. Search for {article} (including curly brackets) in the apsrev4-1.bst file. Then insert the very intuitive lines of code as follows:

...
author format.key output
new.block.comma
%%% lines of code
format.title
    "title" 'bibfield :=
    emphasize
output
new.block.comma
%%% lines of code
article.title.produce
...

Finally, to remove the quotes around the title, search for bbl.enquote "{" * swap$ * "}" * and comment it out.