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"Variable Name","Variable ID","Variable Description",Version,"dbGaP Mapping" PX330504_Perception_Risk_Pipe_Ever,PX330504010000,"Have you ever seen or heard of a pipe before this study?",0,https://www.phenxtoolkit.org/protocols/view/330504 PX330504_Perception_Risk_Pipe_Harmful,PX330504020000,"Is smoking pipes filled with tobacco less harmful, about the same, or more harmful than smoking cigarettes? ",0,https://www.phenxtoolkit.org/protocols/view/330504 PX330504_Perception_Risk_Pipe_Hookah_Shisha_Ever,PX330504030000,"Have you ever seen or heard of a hookah before this study?",0,https://www.phenxtoolkit.org/protocols/view/330504 PX330504_Perception_Risk_Pipe_Hookah_Shisha_Harmful,PX330504040000,"Is smoking tobacco in a hookah less harmful, about the same, or more harmful than smoking cigarettes? ",0,https://www.phenxtoolkit.org/protocols/view/330504