“…In previous reports, several heterotopic sites for OTT have been investigated, including the back muscle (BM) [10,11], fat pad (FP) [12,13], kidney capsule (KC) [14,15], and subcutaneous (SC) tissue [16,17]. Soleimani et al [18] recently found that the BM had some advantages as a mouse grafting site because of its angiogenic conditions.…”