TY - RPRT TI - Graft rejection in earthworms: an electron microscopic study. AU - D S Linthicum AU - D H Marks AU - E A Stein AU - E L Cooper PY - 1977 DO - 10.1002/eji.1830071210 UR - https://pubmed.ncbi.nlm.nih.gov/344047/ ID - 344047 ER -