Alterations in cyclic GMP levels in preeclampsia may reflect increased B-type natriuretic peptide levels and not impaired nitric oxide activity - Sandrin, Valéria Cristina; Palei, Ana Carolina Taveiros; Sertorio, Jonas T.; Amaral, Lorena Machado; Cavalli, Ricardo de Carvalho; Santos, José Eduardo Tanus dos (Clinical Biochemistry, 2011)