000
00266 a2200109 4500
005
20220629230006.0
022
_a
03036979
245
_a
Journal of clinical periodontology
260
_a
Philadelphia
_b
University of pennsylavania
_c
1975
490
_v
2
942
_2
lcc
_c
CR
999
_c
33591
_d
33591