title: Beta-endorphin levels in infant apnea syndrome: a preliminary communication.
mesh_terms: D004723:Endorphins / Q000032:analysis*; D005260:Female; D006801:Humans; D007223:Infant; D008297:Male; D012891:Sleep Apnea Syndromes / Q000175:diagnosis / Q000378:metabolism*; D013398:Sudden Infant Death / Q000175:diagnosis / Q000378:metabolism*; D001615:beta-Endorphin
chemical_list: D004723:Endorphins; D001615:beta-Endorphin