is it possible to produce medial values for pocket depths from the following article  for the healthy periodontal patients: "Impact of smoking on protein levels of beta-defensins in periodontal disease",  "Comparison of gingival crevicular fluid and serum human beta-defensin-2 levels between periodontal health and disease",  "Gingival crevicular fluid levels of Interleukin-22 (IL-22) and human β Defensin-2 (hBD-2) in periodontal health and disease : A correlative study", "Serum vitamin D concentration is associated with antimicrobial peptide level in periodontal diseases",  "Gingival Crevicular Fluid Levels of Human Beta-defensin 2 and 3 in Healthy and Diseased Sites of Individuals with and without Periodontitis", "Relationship between expression of human gingival beta-defensins and levels of periodontopathogens in subgingival plaque" ?