Thyroxine.free^4th specimen post XXX challenge:SCnc:Pt:Ser/Plas:Qn
thyroxine.free^4th specimen post xxx challenge:scnc:pt:ser/plas:qn
Free T4 4th specimen post Unsp challenge [Moles/Vol]
free t4 4th specimen post unsp challenge [moles/vol]