@book{276513,
	author = {Ruiz de Léon San Juan, A.},
	title = {pHmetría en la práctica clínica /},
	publisher = {ergon,},
	year = {2021.},
	address = {Madrid :},
	note = {"GEMD Grupo Español de Motilidad Digestiva"--Cover.},
	url = {https://www.digitaliapublishing.com/a/124380/}
}