raking light studies, 1981-11-17 - 1981-11-17light microscopy, 1981-11 - 1981-11normal light studies, 1980 - 1981not specified, 1981 - 1981-08ultraviolet fluorescence, 1981-08 - 1981-08transmitted light, 1981 - 1981light microscopy, 1981-11 - 1981-11light microscopy, 1981-11 - 1981-11light microscopy, 1981-11 - 1981-11light microscopy, 1981-11 - 1981-11light microscopy, 1981-11 - 1981-11light microscopy, 1981-11 - 1981-11light microscopy, 1981-11 - 1981-11light microscopy, 1981-11-24 - 1981-11-24light microscopy, 1981-11 - 1981-11light microscopy, 1981-11 - 1981-11light microscopy, 1981-11 - 1981-11light microscopy, 1981-11 - 1981-11light microscopy, 1981-11 - 1981-11light microscopy, 1981-11 - 1981-11normal light studies, 1980 - 1981