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"Variable Name","Variable ID","Variable Description",Version,"dbGaP Mapping" PX811301_SerumPlasmaFerritin_Amount,PX811301070000,"Ferritin level",0,https://www.phenxtoolkit.org/protocols/view/811301 PX811301_SerumPlasmaFerritin_Assay_Repeatability,PX811301100000,"Repeatability of the ferritin assay",0,https://www.phenxtoolkit.org/protocols/view/811301 PX811301_SerumPlasmaFerritin_Blood_DrawTube_Deviation,PX811301050000,"Record reasons for a tube not being drawn according to the protocol.",0,https://www.phenxtoolkit.org/protocols/view/811301 PX811301_SerumPlasmaFerritin_Blood_Draw_Results,PX811301040000,"Record the results of the blood draw.",0,https://www.phenxtoolkit.org/protocols/view/811301 PX811301_SerumPlasmaFerritin_Chemotheraphy_4weeks,PX811301020000,"Have you received cancer chemotherapy in the past four weeks or do you anticipate such therapy in the next four weeks?",0,https://www.phenxtoolkit.org/protocols/view/811301 PX811301_SerumPlasmaFerritin_Coefficients_Variation_Assay,PX811301110000,"Coefficients of variation of the ferritin assay",0,https://www.phenxtoolkit.org/protocols/view/811301 PX811301_SerumPlasmaFerritin_Equipment_Make,PX811301080000,"Make of the equipment used to perform the ferritin assay",0,https://www.phenxtoolkit.org/protocols/view/811301 PX811301_SerumPlasmaFerritin_Equipment_Manufacturer,PX811301090000,"Manufacturer of the equipment used to perform the ferritin assay",0,https://www.phenxtoolkit.org/protocols/view/811301 PX811301_SerumPlasmaFerritin_Gender,PX811301030000,Gender,0,https://www.phenxtoolkit.org/protocols/view/811301 PX811301_SerumPlasmaFerritin_Hemophilia,PX811301010000,"Do you have hemophilia?",0,https://www.phenxtoolkit.org/protocols/view/811301 PX811301_SerumPlasmaFerritin_Venipuncture_Comments,PX811301060000,"Record any comments about the venipuncture.",0,https://www.phenxtoolkit.org/protocols/view/811301