Chinnappan S. M., George A., Pandey P., Narke G. and Choudhary Y. K. (2021) “Effect of Eurycoma longifolia standardised aqueous root extract– Physta® on testosterone levels and quality of life in ageing male subjects: a randomised, double-blind, placebo-controlled multicentre study”, Food & Nutrition Research, 65. doi: 10.29219/fnr.v65.5647.