000 00379nam a22001457a 4500
003 SGT
020 _a9780323400800
082 _a617.645
_bU15F
100 _aFrank A. Scannapieco
245 _aUnanswered Questions in Periodontology
260 _aPhiladelphia, United States
_bHealth Sciences Division
_c2015
300 _a761-1002
650 _aPeriodontology
942 _2ddc
_cBK
999 _c18097
_d18097