PT - JOURNAL ARTICLE AU - Ainhoa Costas-Chavarri AU - John G Meara TI - Need for a standardised procedure classification system in global surgery AID - 10.1136/bmjgh-2016-000034 DP - 2016 Sep 01 TA - BMJ Global Health PG - e000034 VI - 1 IP - 2 4099 - http://gh.bmj.com/content/1/2/e000034.short 4100 - http://gh.bmj.com/content/1/2/e000034.full