Commentary: 20-Year Trends in the Pharmacologic Treatment of Bipolar Disorder by Psychiatrists in Outpatient Care Settings - Bruno Etain; Bruno Etain; Bruno Etain; Emilie Olie; Emilie Olie; Philippe Courtet; Philippe Courtet; Ophelia Godin; Ophelia Godin; Marion Leboyer; Marion Leboyer (Frontiers in Psychiatry, 2021)