Without considering other aspects carbon nanotubes with the same aspect ratio have entirely uniform trend in charge density relative distribution curve.

在忽略其他条件影响下，长径比相同的碳纳米管，电荷密度相对分布曲线趋势完全相同。

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Women must be informed of their own breast density, the associated risks, and the best available screening modalities for breast cancer relative to their breast density.

FORBES: Beware Overreaching Government Efforts to Detect Breast Cancer

Epidemiologic studies over the past 40 years have identified numerous risk factors for breast cancer, including: older age, an early age at menarche, a late age at first full-term birth, not having children, a family history of breast cancer in a first-degree relative, greater height, higher circulating estrogen levels, postmenopausal hormone use, breast density, history of breast biopsies, obesity (for postmenopausal breast cancer), and exposure to ionizing radiation.

FORBES: After 40 Years Of Research, What Do We Know About Preventing Breast Cancer?