Gagnon, I., Grilli, L., Friedman, D., Iverson, G. L. Julkaisussa Scandinavian Journal of Medicine & Science in Sports (2016) “...Friedman, D....”
Levine, B. D., Engfred, K., Friedman, D., Kjaer, M., Saltin, B., Clifford, P. S., Secher, N. H. Julkaisussa Medicine & Science in Sports & Exercise (1990) “...Friedman, D....”