Integrated circuit package with contacts on all 4 sides, on the underside of the package.
1Patients and methods: QFN was performed in 245 patients recently hospitalized for suspected TB.
2However, combined negative results of QFN or TST and culture could be useful to rule out active TB.
3Conclusion: The performance of QFN was weak in this context, especially in subgroups at high risk for latent TB.