Born-Digital or AnalogAnalogTranscriptPoliomyelitis Polio cases decline sharply in Colorado. RMN Je 30, 1956 p.28 All state teenagers can get polio shots in new program. RMN Jy 20, 1956 p.5 State polio cases far below normal. RMN Ag 5, 1956 p.28 Polio discovery by CU scientist hailed. RMN S 1, 1956 p.16 Age restrictions are lifted on Salk vaccine in state. RMN S 5, 1956 p.10CollectionWestern History Subject IndexRelated MaterialWestern History Subject Index AbbreviationsType of MaterialIndex CardLanguageeng
