Conclusions: HBV infection is a major etiologic factor for Korean HCC patients.

It is not possible to challenge the patient with an etiologic agent.

Conclusions: These findings suggest stronger impact of etiologic factors on naMCI mortality.

These findings are consistent with common etiologic factors associated with these cancers.

The etiologic distribution of cysts in our study patients is not available.

Urinary tract infection by Proteus is the main etiologic factor of lithogenesis.

All positive pus samples collected for etiologic diagnosis of SSI were included.

A careful physical examination revealed nothing of importance as an etiologic factor.

Selective arteriography was the most accurate method of establishing the etiologic diagnosis.

Enteroviruses are considered as the major etiologic agents of myocarditis in humans.

Autoreactive antibodies are etiologic agents in a number of autoimmune diseases.

The main etiologic factors for this association were car accidents, falls and assaults.

There were no differences for other risk factors or in the etiologic distribution.

Repeated etiologic screening for systemic diseases in these patients was noncontributory.

Our results support the utility of MMPI indicators in etiologic investigations of schizophrenia.

The occurrence of multiple primary cancers may reflect common etiologic factors.