title: To the Editor--why AHH? Another explanation for the AHH phenomenon in the case.
authors.affiliation: Cardiology Department China-Japan Union Hospital of Jilin University Changchun, China.
authors.forename: Huan
authors.initials: H
authors.lastname: Sun
authors.affiliation: Cardiology Department China-Japan Union Hospital of Jilin University Changchun, China. Electronic address: pyang@jlu.edu.cn.
authors.forename: Ping
authors.initials: P
authors.lastname: Yang
mesh_terms: D005260:Female; D006801:Humans; D013611:Tachycardia, Atrioventricular Nodal Reentry / Q000175:diagnosis* / Q000503:physiopathology*