TY - RPRT TI - Echinococcus granulosus: changes in the surface ultrastructure during protoscolex formation. AU - M T Rogan AU - K S Richards PY - 1987 DO - 10.1017/s0031182000054019 UR - https://pubmed.ncbi.nlm.nih.gov/3588015/ ID - 3588015 ER -