Sphingomyelin/Surfactant.total:MFr:Pt:Amnio fld:Qn
sphingomyelin/surfactant.total:mfr:pt:amnio fld:qn
Sphingomyelin/Total surfactant (Amn fld) [Mass fraction]
sphingomyelin/total surfactant (amn fld) [mass fraction]