title: The anterior glands of adult Necator americanus (Nematoda: Strongyloidea). I. Ultrastructural studies.
mesh_terms: D000818:Animals; D006224:Cricetinae; D003594:Cytoplasmic Granules; D004947:Esophagus / Q000166:cytology; D005088:Exocrine Glands / Q000166:cytology; D006801:Humans; D008854:Microscopy, Electron; D008855:Microscopy, Electron, Scanning; D009331:Necator / Q000166:cytology* / Q000502:physiology