@misc{indiciae9787557674b2, title = {[Propolis and its clinical use].}, author = {D F Ivanov and A I Tikhonov and P E Krivenchuk and E V Liarskaia and S I Lotova}, year = {1973}, url = {https://pubmed.ncbi.nlm.nih.gov/4791645/}, note = {Source identifier: 4791645} }