The Neuropeptide Substance P is Elevated in Sickle Cell Disease and is a Marker of Severity of Vaso-occlusive Crisis. - Olawuyi, Olutoyin Adenike; Salawu, Lateef; Adeyemo, Mutiu Ademayowa; Bolarinwa, Rahman A.; Mabayoje, Victor Olatunji; Akerele, Olalekan Isaac (Nigerian Medical Journal, 2024)