AU  - Blackstone MO, Kirsner JB
TI  - EStablishing the site of gastrointestinal bleeding
PT  - JOUR
DP  - 1979
TA  - JAMA
pages = {599},
VI  - 241
IP  - 6
AID  - 10.1001/jama.1979.03290320041030 [doi]
4100  - http://dx.doi.org/10.1001/jama.1979.03290320041030
SO  - JAMA February 9, 1979 241(6):599