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Comment
. 2012 Nov;76(5):1079-80.
doi: 10.1016/j.gie.2012.06.016.

Pseudorandomization using an instrumental variable: a strong tool to break through selection bias

Tsuyoshi Hamada, Takeshi Tsujino, Hiroyuki Isayama, Kazuhiko Koike
Comment

Pseudorandomization using an instrumental variable: a strong tool to break through selection bias

Tsuyoshi Hamada et al. Gastrointest Endosc. 2012 Nov.
No abstract available

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