House crashes a drug-trial appointment to hear Thirteen's idea, and her wrong guess leads to the right one about her bowel.
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Every House moment featuring Gregory House, in story order. Played by Hugh Laurie.

Every House moment featuring Eric Foreman, in story order. Played by Omar Epps.

Every House moment featuring Thirteen, in story order. Played by Olivia Wilde.

Every House moment featuring Lawrence Kutner, in story order. Played by Kal Penn.