PT  - JOURNAL ARTICLE
AU  - E. G. Morrison
AU  - J. A. Embil
TI  - Poliomyelitis in North America: the disease is not dead yet
DP  - 1987 Dec 15
TA  - Canadian Medical Association Journal
PG  - 1085--1087
VI  - 137
IP  - 12
4099  - http://www.cmaj.ca/content/137/12/1085.short
4100  - http://www.cmaj.ca/content/137/12/1085.full
SO  - CMAJ1987 Dec 15; 137