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  "resumen": "INSTITUTO MEXICANO DEL SEGURO SOCIAL publicó la licitación pública LA-50-GYR-050GYR022-N-11-2027 el 12 de noviembre de 2026 para servicio subrogado de marcadores tumorales y estudios delaboratorio especiales. La contratación corresponde a Veracruz. El expediente incluye 3 anexos y 218 partidas.",
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