Development of anatomically based structure for human acinus by Lindenmayer system: accurate model for gas exchange in human lungZeinab Abbasi and Ramin Bozorgmehry BoozarjomheryEur. Phys. J. Plus, 136 8 (2021) 844DOI: https://doi.org/10.1140/epjp/s13360-021-01764-7