No tour followed the album's release, due to Lennox's continuing recuperation from vocal fold nodules.
On the other hand, it is thought by some that belting will produce vocal nodules.
Symptoms of vocal nodules include vocal fatigue and hoarseness or breathiness.
Due to hectic schedule, Joo has been suffering from vocal fold nodule.
From First to Last stated they left the tour due to vocalist Sonny Moore having vocal nodules.
In late October 2006, Cester was diagnosed with vocal nodules.
The development of vocal fold nodules represents another issue of biological causation.
Medical evidence indicates that singing at too high of a pitch level may lead to the development of vocal nodules.
On top of that, Johnson suffered from vocal nodules and had to go through speech therapy.
See vocal fold nodule for more information on nodules.