<https://journals.biologists.com/dev/article/121/12/3997/38608/Mouse-embryos-lacking-RXR-alpha-are-resistant-to>
<http://schema.org/url>
<https://dx.doi.org/10.1242/dev.121.12.3997>
<https://journals.biologists.com/dev/article/121/12/3997/38608/Mouse-embryos-lacking-RXR-alpha-are-resistant-to>