TY - RPRT TI - Histochemical observations on rumen mucosa structure and composition. AU - R Lavker AU - W Chalupa AU - P Opliger PY - 1969 DO - 10.3168/jds.s0022-0302(69)86544-6 UR - https://pubmed.ncbi.nlm.nih.gov/4236739/ ID - 4236739 ER -