DOI: 10.1055/s-00000020

Geburtshilfe und Frauenheilkunde

References

Whittemore AS, Harris R, Itnyre J, Halpern J.
Characteristics relating to ovarian cancer risk: collaborative analysis of 12 US case-control studies. I. Methods. Collaborative ovarian cancer group. 
Am J Epidemiol 1992; 136: 1175-1183  

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