PT  - JOURNAL ARTICLE
AU  - George E Ehrlich
TI  - How many angels could dance on the head of a pin?
DP  - 2002 Oct 01
TA  - The Journal of Rheumatology
PG  - 2240--2240
VI  - 29
IP  - 10
4099  - http://www.jrheum.org/content/29/10/2240.short
4100  - http://www.jrheum.org/content/29/10/2240.full
SO  - J Rheumatol2002 Oct 01; 29