00711nam a22002172  4500001001300000003000500013005001700018008004100035040001800076086002300094099002300117245009300140260003000233300000700263500008300270500004400353650002200397710003700419949001800456999001900474hsl001007393DGPO20170826152600.0170117s1970    dcu          f000 0 eng d  aGPOcGPOdMvI0 aHE 20.3161/A:SI 34  aHE 20.3161/A:SI 3400aSeparation of cells drom [sic] mast cell tumor on density gradients of colloidal silica.  a[Washington, D.C.,c1970]  av.  a[Reprinted from Journal of National Cancer Institute, v. 44, no.6, June 1970].  aCRDP Program Historic Shelflist record. 0aCancerxResearch.2 aNational Cancer Institute (U.S.)  aBEVbFed Docs  c264736d264736