https://digitalarchive.tpl.ca/internal/media/dispatcher/1995213/fullRevolution: Dr. Harold Johns demonstrates the high-energy radiation unit he developed. It took 60 minutes to treat patients with 200,000-volt machines(...)6/27/1980[com.gallerysystems.emuseum.core.entities.RecordXPerson@8ba781, com.gallerysystems.emuseum.core.entities.RecordXPerson@9104d7, com.gallerysystems.emuseum.core.entities.RecordXPerson@8acbd0, com.gallerysystems.emuseum.core.entities.RecordXPerson@915ac7]com.gallerysystems.emuseum.core.entities.RecordXPerson@8ba781com.gallerysystems.emuseum.core.entities.Classification@bdTSPA-1https://digitalarchive.tpl.ca/objects/279469/rdf