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Use "preoptic" in a sentence
"GnRH1-producing neurons in regions of the brain known as the preoptic and hypothalamic regions in arrhinencephalic fetuses, whereas large numbers of these cells were present in control fetuses."
"Langub, MC, et al. Estrogen receptor immunoreactive glia, endothelia and ependyma in guinea pig preoptic area and median eminence: electron microscopy."
"Jacobson, W, et al. Decreased in mediobasal hypothalamic and preoptic area opoid binding are associated with the progesterone-induced luteinizing hormone surge."