title: No association in a Chinese population.
authors.forename: W K
authors.initials: WK
authors.lastname: Leung
authors.forename: J
authors.initials: J
authors.lastname: Yu
authors.forename: K F
authors.initials: KF
authors.lastname: To
mesh_terms: D016022:Case-Control Studies; D005260:Female; D016481:Helicobacter Infections / Q000150:complications*; D016480:Helicobacter pylori / Q000302:isolation & purification*; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008297:Male; D016133:Polymerase Chain Reaction; D015203:Reproducibility of Results; D012189:Retrospective Studies; D013398:Sudden Infant Death / Q000209:etiology*