In Vitro and In Vivo Refractoriness to Thyrotropin Stimulation of Iodine Organification and Thyroid Hormone Secretion

^{Clinical Research Unit and Department of Medicine and Pathology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania 15261}

^{The Diabetes Research Laboratory of St. Luke's Hospital, Baylor College of Medicine, Houston, Texas 77025}

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^{Clinical Research Unit and Department of Medicine and Pathology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania 15261}

^{The Diabetes Research Laboratory of St. Luke's Hospital, Baylor College of Medicine, Houston, Texas 77025}

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^{Clinical Research Unit and Department of Medicine and Pathology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania 15261}

^{The Diabetes Research Laboratory of St. Luke's Hospital, Baylor College of Medicine, Houston, Texas 77025}

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^{Clinical Research Unit and Department of Medicine and Pathology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania 15261}

^{The Diabetes Research Laboratory of St. Luke's Hospital, Baylor College of Medicine, Houston, Texas 77025}

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^{Clinical Research Unit and Department of Medicine and Pathology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania 15261}

^{The Diabetes Research Laboratory of St. Luke's Hospital, Baylor College of Medicine, Houston, Texas 77025}

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^{Clinical Research Unit and Department of Medicine and Pathology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania 15261}

^{The Diabetes Research Laboratory of St. Luke's Hospital, Baylor College of Medicine, Houston, Texas 77025}

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