When you want to express doubt or skepticism about something, the phrase "brings into question" is a great choice. However, if you're looking for alternative words or phrases that can be used in place of it, consider using "casts doubt on," "raises objections," "casts aspersions," "disputes," "challenges," or "questions the veracity of." Each of these alternatives can bring a different nuance to the sentence, but they all convey the idea that something is being called into question or doubted in some way. Whether you're writing an essay, an article, or a report, having a diverse set of synonyms in your arsenal can help you express yourself more precisely and effectively.