RT Journal A1 Smith RH T1 REcurrent tonsillitis among twins JF JAMA JO JAMA YR 2005 FD June 15 VO 293 IS 23 SP 2925 OP 2926 DO 10.1001/jama.293.23.2925 UL http://dx.doi.org/10.1001/jama.293.23.2925 AB