00649cam a22002171  4500001001300000003000400013005001700017008004100034010001700075035002000092040001900112042001200131050001400143060001800157245009000175260004300265300001600308500006800324710002200392999001700414med47000577 DLC20260227111600.0820128s1946    xx            000 0 eng    amed47000577   a(OCoLC)14723125  aDLCcDNLMdDLC  apremarc00aRC77b.P700aW6bP3 v.574400aPrinciples and technique of electroencephalography based on recent clinical research.  a[St. Louis,bDios chemical co.,c1946]  a23 p.bill.  a"Written by a registered physician for the medical profession."2 aDios Chemical Co.  c38120d38120