Physical activity levels, exercise intrinsic motivation, physical fitness, and their association with adiposity and Oxytocin Receptor (OXTR) rs53576 and rs2254298 gene variants. - Say, Yee-How; Leong, Kristin-Ann Zhe Mun; Ng, Hui Wen; Ng, Zi Di; Letchumanan, Geetha; Chook, Jack Bee (PLoS ONE, 2025)