TY - RPRT TI - Quantitative changes in the frog muscle spindle with passive stretch. AU - U L Karlsson AU - W M Hooker AU - E G Bendeich PY - 1971 DO - 10.1016/s0022-5320(71)90028-1 UR - https://pubmed.ncbi.nlm.nih.gov/4255768/ ID - 4255768 ER -