Message
Article with article-type "expression-of-concern" must have section heading "Expression of Concern"
Rule XPath:
This rule ASSERTS the following, raising an alert if FALSE:
not(@article-type = 'expression-of-concern') or front/article-meta/article-categories/subj-group[@subj-group-type
= 'heading']/subject[. = 'Expression of Concern']