AUTHOR=DurĂ¡n Javier , Estrada Manuel TITLE=Commentary: Blockade of activin type II receptors with a dual anti-ActRIIA/IIB antibody is critical to promote maximal skeletal muscle hypertrophy JOURNAL=Frontiers in Pharmacology VOLUME=9 YEAR=2018 URL=https://www.frontiersin.org/journals/pharmacology/articles/10.3389/fphar.2018.00381 DOI=10.3389/fphar.2018.00381 ISSN=1663-9812