1.
Acta Med Port
; 3(4): 281-9, 1981.
Article
in English
| MEDLINE
| ID: mdl-7331885
Subject(s)
Electrocardiography , Gastroscopy/adverse effects , Stomach Diseases/diagnosis , Adult , Aged , Female , Fiber Optic Technology , Humans , Male , Middle Aged , Sex Factors , Tachycardia/etiology
2.
J Electrocardiol
; 4(4): 307-14, 1971.
Article
in English
| MEDLINE
| ID: mdl-4945646