TY - RPRT TI - Fibroblasts contracting three-dimensional collagen gels exhibit ultrastructure consistent with either contraction or protein secretion. AU - C G Bellows AU - A H Melcher AU - U Bhargava AU - J E Aubin PY - 1982 DO - 10.1016/s0022-5320(82)80022-1 UR - https://pubmed.ncbi.nlm.nih.gov/7201025/ ID - 7201025 ER -