PH-gramm with GERD.jpg
Miheev
en
PH gramm with GERD, Gastroesophageal reflux disease, Esophageal pH monitoring
commons
ja
PHグラム with GERD、胃食道逆流症、食道pHモニタリング
commons_translated
gastroesophageal reflux reflux hyperacidity gastroesophageal esophageal