{Reference Type}: Letter
{Title}: Non-motor symptoms in postural instability/gait difficulty subtype in the early stage of Parkinson's disease.
{Author}: Suzuki K;Fujita H;Matsubara T;Hirata K;
{Journal}: Eur J Neurol
{Volume}: 26
{Issue}: 3
{Year}: 03 2019
{Factor}: 6.288
{DOI}: 10.1111/ene.13828
{Abstract}: