@article{yam99inv,
  title = {Investigating Centre Effects in a Multi-Centre Clinical Trial of Superficial Bladder Cancer},
  volume = {18},
  journal = {Stat Med},
  author = {Yamaguchi, Takuhiro and Ohashi, Yasuo},
  year = {1999},
  keywords = {penalized-partial-likelihood,treatment-by-center-interaction,cox-random-effects-model,mixed-effects,multi-center-rct,multi-site-rct},
  pages = {1961-1971},
  citeulike-article-id = {13265066},
  posted-at = {2014-07-14 14:09:48},
  priority = {0}
}

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