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Pubic lice (crabs) are usually spread through sexual contact. You cannot catch them by using a public toilet.
Stroke kills people from all ethnic backgrounds, but the people at highest risk for fatal strokes are: black men, black women, Asian men, white men, and white women.
Bisphosphonates were first developed in the nineteenth century. They were first investigated for use in disorders of bone metabolism in the 1960s. They are now used clinically for the treatment of osteoporosis, Paget's disease, bone metastasis, multiple myeloma, and other conditions that feature bone fragility.
The first oncogene was discovered in 1970 and was termed SRC (pronounced "SARK").
About 3% of all pregnant women will give birth to twins, which is an increase in rate of nearly 60% since the early 1980s.