PT  - JOURNAL ARTICLE
AU  - Rosalind Ashton
AU  - Susan H. Young
TI  - Immunization from a photographic perspective: the 1961 polio trial in Nova Scotia
AID  - 10.1503/cmaj.110286
DP  - 2011 Apr 19
TA  - Canadian Medical Association Journal
PG  - E356--E360
VI  - 183
IP  - 7
4099  - http://www.cmaj.ca/content/183/7/E356.short
4100  - http://www.cmaj.ca/content/183/7/E356.full
SO  - CMAJ2011 Apr 19; 183