1.
Unsafe injections and transmission of HIV-1 in sub-Saharan Africa
by Gisselquist, David
The Lancet (British edition), 2004, Vol.363 (9421), p.1648-1649

2.
Atypical systolic clicks produced by prolapsing mitral valve masses
by Bank, Alan J
The American journal of cardiology, 1992, Vol.69 (17), p.1491-1494
