PT  - JOURNAL ARTICLE
AU  - Thomas R. O’Neill
AU  - Michael R. Peabody
AU  - James C. Puffer
TI  - THE ABFM BEGINS TO USE DIFFERENTIAL ITEM FUNCTIONING
AID  - 10.1370/afm.1587
DP  - 2013 Nov 01
TA  - The Annals of Family Medicine
PG  - 578--579
VI  - 11
IP  - 6
4099  - http://www.annfammed.org/content/11/6/578.short
4100  - http://www.annfammed.org/content/11/6/578.full
SO  - Ann Fam Med2013 Nov 01; 11