More Groups
Fewer Groups
More People
Fewer People
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Aisenberg, J.; Hsieh, K.; Kalaitzoglou, G.; Whittam, E.; Heller, G.; Schneider, R.; Sklar, C. Journal of Pediatric Hematology/Oncology (1998)
Olson, S. H.; Zauber, A. G.; Tang, J.; Harlap, S. Epidemiology (1998)
Newman, K. D.; Black, T.; Heller, G.; Azizkhan, R. G.; Holcomb, G. W. 3rd; Sklar, C.; Vlamis, V.; Haase, G. M.; La Quaglia, M. P. Annals of Surgery (1998)