Sentence examples for current incidence is unknown from inspiring English sources

The worldwide incidence was 12 cases per 100,000 per year in 1992, but the current incidence is unknown.

There really isn't even a consistent definition of what osteonecrosis of the jaw is, and the true incidence is unknown".

The exact incidence is unknown.

Bleeding is very rare in the β-catenin subtype although the exact incidence is unknown.

Trauma-related pseudomeningoceles are rare and the true incidence is unknown [8].

Parahiatal hernia is a rare form of diaphragmatic hernia, and its exact incidence is unknown.

NE incidence is unknown, reports ranging from 0.8 to 26% [8].

However, because of the diagnostic challenge that scaphoid fractures often present, the exact incidence is unknown.

Although propylene glycol toxicity is increasingly recognized and reported, its incidence is unknown.

Although significant tracheal stenosis after PDT has been reported, the exact incidence is unknown.

Intramedullary breast cancer metastasis (IMBCM) is considered rare but its true incidence is unknown.