Fig. 1From: Evaluation of the diagnostic performance of colposcopy in the detection of cervical high-grade squamous intraepithelial lesions among women with transformation zone type 3Flowchart illustrating the selection of study population. TZ, transformation zone; LEEP, loop electrosurgical excision procedure; CKC, cold-knife conization; CLC, cervical laser conization; CDB, colposcopy-directed biopsyBack to article page