Pituitary cells adenohypophysis 4 article 4 female 4 prolactin 4 4 aminobutyric acid B receptor 2 4 aminobutyric acid B receptor stimulating agent 2 Animalia 2 Animals 2 Baclofen 2 Eels 2 Female 2 Gonadotropins, Pituitary 2 Humans 2 Immunocytochemistry 2 Immunohistochemistry 2 Infantile female rats 2 Light microscopy 2 Male 2 Pituitary Gland, Anterior 2 Pituitary Hormones, Anterior 2 Pituitary gland 2 Prolactin 2 Synbranchiformes 2 adenohypophysis hormone 2 animal 2 animal cell 2 baclofen 2 cell culture 2 cell type 2