Rothman KJ, Arellano F. Elevating the level of scientific discourse. Int J Occup Environ Health. 2005 Sep 1;11(3):327-8.
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.