الإتاحة: https://doi.org/10.1200/JCO.19.01231Testhttp://hdl.handle.net/10668/14743Test
الوصول الحر: https://explore.openaire.eu/search/publication?articleId=RECOLECTA___::c574027795ea2c86c66290b6574dbef5Testhttps://fundanet.iislafe.san.gva.es/publicaciones/ProdCientif/PublicacionFrw.aspx?id=14926Test
الوصول الحر: https://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-151775Test
الإتاحة: https://doi.org/10.1016/j.clml.2018.06.018Testhttp://hdl.handle.net/11365/1063211Testhttp://www.sciencedirect.com/science/journal/21522650Test