Additional file 1 of Performance of ultrasonography screening for breast cancer: a systematic review and meta-analysis

Additional file 1: Supplementary S1. Searching strategies in details from four databases. Supplementary S2. Flowchart of searching strategy. Supplementary S3. Bias risk assessment criteria. Supplementary S4. Screening accuracy for S-US screening. Supplementary S5. Screening accuracy for P-MAM screening. Supplementary S6. Screening accuracy for P-US screening. Supplementary S7. Subgroup analyses on the performance of S-US screening for breast cancer. Supplementary S8. Subgroup analyses on the performance differences between P-MAM and P-US for breast cancer.