López MV, Rivero E, Serra C, Campo M, Raurich M, Bonfill X. Health survey in health care professionals in Barcelona. Arch Prev Riesgos Laborales. 1998;1(2):55-62.
Clarkson TB, Anthony MS, Klein KP. Effects of estrogen treatment on arterial wall structure and function. Drugs. 1984;47(Suppl 2):42-51.