TY - RPRT TI - Pattern formation in hydra tissue without developmental gradients. AU - H Ando AU - Y Sawada AU - H Shimizu AU - T Sugiyama PY - 1989 DO - 10.1016/0012-1606(89)90044-4 UR - https://pubmed.ncbi.nlm.nih.gov/2731636/ ID - 2731636 ER -