TY - GEN AU - James M Cassel C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 1970-01-01 05:01:00 DO - https://doi.org/10.6028/NBS.RPT.10271 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 1970 TI - Aggregation phenomena of collagen::progress report ER -