more likely to suffer
...that people with patent foramen ovale, an atrial septal defect, are more likely to suffer from migraine headaches?
...that people with patent <a href="./Foramen_ovale_(heart)" id="mwBK4" rel="mw:WikiLink" title="Foramen ovale (heart)">foramen ovale</a>, an <a href="./Atrial_septal_defect" id="mwBK8" rel="mw:WikiLink" title="Atrial septal defect">atrial septal defect</a>, are <b id="mwBLA"><a class="mw-redirect" href="./Migraines_associated_with_PFO_heart_defect" id="mwBLE" rel="mw:WikiLink" title="Migraines associated with PFO heart defect">more likely to suffer</a></b> from <a href="./Migraine" id="mwBLI" rel="mw:WikiLink" title="Migraine">migraine</a> headaches?