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JCP.20.2.216
JCP.20.2.216
http://dx.doi.org/10.1136/JCP.20.2.216
Use of barium sulphate as a continuous marker for faeces
P356
Q41216954-45A3E88D-1AAE-4991-B44B-7F604C3ADFDD
P356
JCP.20.2.216
http://dx.doi.org/10.1136/JCP.20.2.216