Screening and litigation. Some false negatives arise from negligence.
Coleman
D V
DV
D005188:False Negative Reactions; D005260:Female; D006801:Humans; D002583:Uterine Cervical Neoplasms / Q000175:diagnosis* / Q000191:economics; D014626:Vaginal Smears / Q000191:economics / Q000379:methods*