Oltner, R Changes in plasma progesterone levels during storage of heparinized whole blood from cow, horse, dog and pig. [electronic resource] - Acta veterinaria Scandinavica 1982 - 1-8 p. digital Publication Type: Comparative Study; Journal Article ISSN: 0044-605X Subjects--Topical Terms: AnimalsBlood Specimen Collection--veterinaryCattle--bloodDogs--bloodFemaleHorses--bloodProgesterone--bloodRadioimmunoassaySwine--bloodTemperatureTime Factors