@misc{indiciae84c978980004, title = {Vertical control: a multifactorial problem and its clinical implications.}, author = {M N Spyropoulos and M Askarieh}, year = {1976}, doi = {10.1016/0002-9416(76)90261-x}, url = {https://pubmed.ncbi.nlm.nih.gov/1066046/}, note = {Source identifier: 1066046} }