Authors: Winkler, UH Altkemper, R Kwee, B Helmond, FA Bennink, HJTC

Citation: Uh. Winkler et al., Effects of tibolone and continuous combined hormone replacement therapy onparameters in the clotting cascade: a multicenter, double-blind, randomized study, FERT STERIL, 74(1), 2000, pp. 10-19

Authors: Olsson, IAS de Jonge, FH Schuurman, T Helmond, FA

Citation: Ias. Olsson et al., Poor rearing conditions and social stress in pigs: repeated social challenge and the effect on behavioural and physiological responses to stressors, BEHAV PROC, 46(3), 1999, pp. 201-215