Dr. Lisa Newman travels 16 hours from California to Ghana in search of cancer survivors . She works with doctors to discover origins of triple negative breast cancer . Newman : Little is known about what causes TNBC . The most affected are younger , pre - menopausal with African ancestry . She believes there 's a link between Ghanaian , African - American women with TNBC .
Dr. Lisa Newman travels 16 hours from California to Ghana in search of cancer survivors . She works with doctors to discover origins of triple negative breast cancer . Newman : The most affected are younger , pre - menopausal with African ancestry . She believes there 's a link between Ghanaian , African - American women with TNBC .