Also known as: Labor; Prolonged, First Stage / Prolonged first stage (of labor) / Secondary uterine inertia / Prolonged first stage of labour / Prolonged first stage of labor (disorder) / Arrested active phase of labor (disorder) / Prolonged 1st stage / Long labor, unspecified / Long labor / Long labour / Poor progression of labor / Poor progression of labour / Prolonged labor, unspecified / Prolonged labour / Prolonged labour, unspecified / Prolonged labor (disorder) / Prolonged labor / Labor prolonged