concerning
Ἐς δὲ τὰ ἔσχατα νουσήματα αἱ ἔσχαται θεραπεῖαι ἐς ἀκριβείην, κράτισται -> For extreme diseases, extreme methods of cure, as to restriction, are most suitable.
Corpus Hippocraticum, Aphorisms 1.6.2
P. and V. περί (acc. or gen.), ὑπερ (gen.), V. ἀμφί (gen. or dat.).
in reference to: P. and V. κατά (acc.).