[A study on the effects of RF coil for the static magnetic field].

{
  "study_type": "engineering",
  "exposure": {
    "band": null,
    "source": "MRI",
    "frequency_mhz": null,
    "sar_wkg": null,
    "duration": null
  },
  "population": null,
  "sample_size": null,
  "outcomes": [
    "abnormal points in static magnetic field",
    "methods of exclusion/adjustment for MRI"
  ],
  "main_findings": "The paper reports investigations of abnormal points in a static magnetic field, identifies their causes, and provides methods to exclude/correct them to improve MRI adjustment.",
  "effect_direction": "unclear",
  "limitations": [
    "No quantitative exposure metrics (e.g., field strength) reported in the abstract.",
    "No study design details, sample size, or measurement methods described.",
    "No health outcomes reported; focus appears to be on MRI field/engineering issues."
  ],
  "evidence_strength": "insufficient",
  "confidence": 0.66,
  "peer_reviewed_likely": "yes",
  "keywords": [
    "static magnetic field",
    "MRI",
    "RF coil",
    "abnormal points",
    "instrument adjustment",
    "exclusion methods"
  ],
  "suggested_hubs": []
}