TY - RPRT TI - The correlation between colposcopic grading, directed punch biopsy, and conization. AU - W C Boelter AU - R L Newman PY - 1975 DO - 10.1016/0002-9378(75)90352-x UR - https://pubmed.ncbi.nlm.nih.gov/1155529/ ID - 1155529 ER -