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. 2016 Nov 30;475(3):894–902. doi: 10.1007/s11999-016-5184-6

Fig. 4A–C.

Fig. 4A–C

(A) Control rats showed normal bone callus formation with the presence of newly formed trabecular bone. (B) Rats preexposed to tobacco smoke showed delayed bone healing with bone callus mostly formed by nonosseous tissue. (C) Rats with pre- and postexposure also showed impaired bone healing, but to a greater degree than with preexposure to tobacco smoke. The arrows indicate cortical bone, the asterisks indicate woven bone, and the hashtags indicate immature nonosseous tissue in bone callus.