PT - JOURNAL ARTICLE AU - Ruth A. Lawrence TI - Peer support: making a difference in breast-feeding duration DP - 2002 Jan 08 TA - Canadian Medical Association Journal PG - 42--43 VI - 166 IP - 1 4099 - http://www.cmaj.ca/content/166/1/42.short 4100 - http://www.cmaj.ca/content/166/1/42.full SO - CMAJ2002 Jan 08; 166