None<ref>{{Cite journal|last=Cortes|first=Jorge E.|last2=Mehta|first2=Priyanka|date=2020-12-23|title=Determination of Fitness and Therapeutic Options in Older Patients With Acute Myeloid Leukemia|url=https://pubmed.ncbi.nlm.nih.gov/33368536|journal=American Journal of Hematology|doi=10.1002/ajh.26079|issn=1096-8652|pmid=33368536}}</ref>