title: Endogenous neutral steroids in the lung tissue of early and mid-term human foetuses and in vitro studies on their formation.
mesh_terms: D000728:Androgens / Q000302:isolation & purification / Q000378:metabolism*; D002849:Chromatography, Gas; D002850:Chromatography, Gel; D005260:Female; D005333:Fetus / Q000378:metabolism*; D005865:Gestational Age; D006801:Humans; D008168:Lung / Q000196:embryology / Q000378:metabolism*; D013058:Mass Spectrometry; D011247:Pregnancy; D011284:Pregnenolone / Q000302:isolation & purification / Q000378:metabolism*; D013431:Sulfates / Q000378:metabolism; D014316:Tritium
chemical_list: D000728:Androgens; D013431:Sulfates; D014316:Tritium; D011284:Pregnenolone