To find a specific article when you know some of the publication information such as journal name, publication date, page numbers, author name, or title words, use the Single Citation Matcher form.
The link to Single Citation Matcher is on the PubMed homepage. It is the third item in the second-left section labeled Find, below the search box.
You only need to fill in a few data points.
Author Name and First Page often bring up a single result.