Sahaj Samadhi meditation vs a Health Enhancement Program in improving late-life depression severity and executive function: study protocol for a two-site, randomized controlled tri... oleh Stephen Benjamin Peckham, Emily Ionson, Marouane Nassim, Kevin Ojha, Lena Palaniyappan, Joe Gati, Jean Thebérge, Andrea Lazosky, Mark Speechley, Imants Barušs, Soham Rej, Akshya Vasudev