title: Manipulation of external tachodynamometer by the patient: case report.
mesh_terms: D000005:Abdomen; D000037:Abruptio Placentae / Q000175:diagnosis; D000328:Adult; D005189:False Positive Reactions; D005260:Female; D006801:Humans; D007752:Obstetric Labor, Premature / Q000175:diagnosis*; D011247:Pregnancy; D011312:Pressure; D014590:Uterine Contraction