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- [26] COMPARISON OF LIGHT-SCATTERING INDEX 50-PERCENT (LSI50) AND INHIBITORY CONCENTRATION 50-PERCENT (CI50) ANNALES DE MICROBIOLOGIE, 1982, A133 (03): : 409 - 416
- [27] HORIZONTAL MERGERS - THE 50-PERCENT BENCHMARK AMERICAN ECONOMIC REVIEW, 1990, 80 (05): : 1238 - 1245
- [30] CLINICAL EXPERIENCES IN EXCRETORY PYELOGRAPHY - A COMPARATIVE STUDY OF DIFFERENT CONTRAST MEDIA (HYPAQUE 50-PERCENT, MIOKON 50-PERCENT AND UROKON 50-PERCENT IN 3,454 CASES AMERICAN JOURNAL OF ROENTGENOLOGY RADIUM THERAPY AND NUCLEAR MEDICINE, 1959, 82 (05): : 849 - 852