Rothwell, P. M. (2006). [Individual therapy 1. External validation of randomized controlled studies. "When is the publication of these studies feasible?"]. Zeitschrift Fur Arztliche Fortbildung Und Qualitatssicherung, 100(4), 303–317.

Rothwell, P. M. “[Individual Therapy 1. External Validation of Randomized Controlled Studies. ‘When Is the Publication of These Studies Feasible?"].” Zeitschrift Fur Arztliche Fortbildung Und Qualitatssicherung, vol. 100, no. 4, Zeitschrift fur arztliche Fortbildung und Qualitatssicherung, 2006, pp. 303–17.

Rothwell, PM. 2006. “[Individual Therapy 1. External Validation of Randomized Controlled Studies. ‘When Is the Publication of These Studies Feasible?"].” Zeitschrift Fur Arztliche Fortbildung Und Qualitatssicherung 100 (4): 303–17.