But what about a problem that could affect either sex, like a dislocated shoulder?

VOA: special.2010.07.15

But more than eighty percent of suspected incidents involve the sex trade.

VOA: special.2010.06.14

But single-sex housing is usually also available.

VOA: special.2009.03.26

The virus can be transmitted by unsafe sex and unsterile needles, but most people who suffer from the disease become infected at birth from their mothers.

VOA: standard.2010.07.26

The IAAF says Semenya was subjected to sex testing three weeks ago, following complaints from a member body, but have refused to say exactly what the complaint was or who made it.

VOA: standard.2009.08.25