title: Phenocopies in breast cancer 1 (BRCA1) families: implications for genetic counselling.
authors.forename: Jacek
authors.initials: J
authors.lastname: Gronwald
authors.forename: Cezary
authors.initials: C
authors.lastname: Cybulski
authors.forename: Jan
authors.initials: J
authors.lastname: Lubinski
authors.forename: Steven A
authors.initials: SA
authors.lastname: Narod
mesh_terms: D000328:Adult; D015982:Bias; D001943:Breast Neoplasms / Q000453:epidemiology / Q000235:genetics* / Q000517:prevention & control; D015331:Cohort Studies; D005192:Family Health; D005260:Female; D005500:Follow-Up Studies; D019398:Genes, BRCA1; D005817:Genetic Counseling; D005820:Genetic Testing; D006801:Humans; D008875:Middle Aged; D016017:Odds Ratio; D018579:Patient Selection; D010641:Phenotype; D011044:Poland / Q000453:epidemiology; D012107:Research Design; D012306:Risk; D035781:Siblings