Childrenwhoareraisedinhouseholdswithdogsduringtheirfirs...
問題詳情：Childrenwhoareraisedinhouseholdswithdogsduringtheirfirstyearoflifemayhavealowerriskofasthma(哮喘)afewyearslater,anewstudysuggests.Inthestudy,theresearcherslookedatearlyexposuretodogsandfarmani...