TY - RPRT TI - Unbiased stereologic estimation of surface density in bone using vertical sections. AU - A Vesterby AU - J Kragstrup AU - H J Gundersen AU - F Melsen PY - 1987 DO - 10.1016/8756-3282(87)90126-8 UR - https://pubmed.ncbi.nlm.nih.gov/3555560/ ID - 3555560 ER -