TY - GEN AU - Takken,T AU - Blank,A C AU - Hulzebos,E H AU - van Brussel,M AU - Groen,W G AU - Helders,P J TI - Cardiopulmonary exercise testing in congenital heart disease: equipment and test protocols SN - 1876-6250 PY - 2011///0714 N1 - Publication Type: Journal Article UR - https://doi.org/10.1007/BF03086280 ER -