Keywords in Latex APA style

According to the APA manual, up to five keywords should be provided on the abstract page. Using the \keywords command with \documentclass[nobf,man]{apa} may not work. Workaround:

\abstract{
Provide the text of the abstract as usual here.
\\
\hspace{10mm} \textit{Keywords}: keyword1, keyword2, keyword3, keyword4, keyword 5
}