TY - RPRT TI - Tentacle regeneration in Hydra: a quantitative methodological approach. AU - G Nolfe AU - P Pierobon AU - S Piscitelli PY - 1987 DO - 10.1016/0141-5425(87)90012-4 UR - https://pubmed.ncbi.nlm.nih.gov/3613551/ ID - 3613551 ER -