TY - RPRT TI - Retinoic acid promotes in vitro development of haploid germ cells from pre-pubertal porcine spermatogenic cells AU - Deng, S.-L. AU - Lian, Z.-X. AU - Yu, K. AU - Zhang, Y. AU - Zhang, B.-L. AU - Wu, H.-Y. AU - Han, D.-P. AU - Liu, Y.-X. AU - Wang, S.-T. PY - 2019 DO - 10.1101/552083 UR - https://www.biorxiv.org/content/10.1101/552083v1 ID - 10.1101/552083 ER -