div class=ts-pagebutton class=gotoPage data-page=1Page 1button div class=ts-imageimg data-url=steroids-exerting-a-direct-progestational-effect-on-the-rabbit-endometriumhtmlpage=1 data-page=1 class=ts-thumb lazyload alt=Page 1: Steroids exerting a Direct Progestational Effect on the Rabbit Endometrium loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader035vdocumentsusreader035viewer2022081213575067fc1a28ab0f07ae0ffchtml5thumbnails1jpg width=140 height=200 divp© 1952 Nature Publishing Grouppdiv