TY - RPRT TI - Normal sleep pattern analyzed statistically and studied by color "dormograms". AU - L Philipson AU - A M Risberg AU - D H Ingvar PY - 1980 DO - 10.1093/sleep/2.4.437 UR - https://pubmed.ncbi.nlm.nih.gov/7403743/ ID - 7403743 ER -