Second step: testing-outcome measurements.
Lorenz W, Troidl H, Solomkin JS, Nies C, Sitter H, Koller M, Krack W, Roizen MF.
Lorenz W, et al. Among authors: krack w.
World J Surg. 1999 Aug;23(8):768-80. doi: 10.1007/s002689900578.
World J Surg. 1999.
PMID: 10415201
Review.