2022. Do avanafil and zaprinast exert positive effects on bone tissue via the nitric oxide/cyclic guanosine monophosphate/protein kinase-G signaling pathway in rats with ovariectomy-induced osteoporosis?. Brazilian Journal of Pharmaceutical Sciences. 57, (Nov. 2022). DOI:https://doi.org/10.1590/s2175-97902020000418976.