More Groups
Fewer Groups
More People
Fewer People
More Years
Fewer Years
More Publications
Fewer Publications
More Publishers
Fewer Publishers
Siegel, K.; Mesagno, F. P.; Karus, D. G.; Christ, G. Cancer (1992)
Almquist, G.; Couper, J.; Tierney, J. A. Journal of the Association of Pediatric Oncology Nurses (1989)