COVID-19(18) Pregnancy(16) pregnant women(11) SARS-CoV-2(10) women(10) conducted(8) material(8) prospective observational study(8) was performed(8) Inflammation(5) severe cases(5) Analysis(5) Neurological symptom(5) NEUROLOGY(5) cerebrospinal fluid(5) COVID-19 symptom(5) determine(5) headache(5) Central nervous system(5) Injury(5) polymerase chain(5) Newborn(5) pathophysiology(5) early stage(5) cell damage(5) absence(5) Vaccine(5) Anosmia(5) Neurological symptoms(5) COVID-19 patient(5)