translation.en: But these clinics have treated tens of thousands of patients to date, many of them children, and SPECT imaging involves a radioactive injection, so exposing people to radiation, potentially harmful.
translation.zh: 诊断精神疾病 但是到目前为止这些诊所已经治疗了 数万病人 很多还是儿童 SPECT成像是将放射性物质注射到体内 把人们暴露在放射性物质之下，会有潜在危害