Double trouble: Synchronous and metachronous primaries confound ctHPVDNA monitoring. Naegele S, Efthymiou V, Hirayama S, et al. Double trouble: Synchronous and metachronous primaries confound ctHPVDNA monitoring. Head & neck. 2023;45(6):E25-E30. doi:10.1002/hed.27378 Read more