laboratory diagnostic - others - CrossLaps CTx (bone resorbtion marker, osteopenia, osteoporosis: fracture risk assessment), non haemolysed Serum or EDTA plasma 1ml. sample in morning IN FASTING STATE before 9 a.m., Separate the serum within 3 hrs. Frozen, The serum/plasma must be frozen within 1 hour after collection and must be sent in the frozen samples container(!), Electrochemiluminescence, todylaboratories®, code L76LD1609