Biomedical doctoral students’ research practices when facing dilemmas: two vignette-based randomized control trials oleh V.T Nguyen, M. K. Sharp, C. Superchi, G. Baron, K. Glonti, D. Blanco, M. Olsen, T.T Vo Tat, C. Olarte Parra, A. Névéol, D. Hren, P. Ravaud, I. Boutron