POTGER’S PSEUDO–PERFUSION PUZZLE NO. IV (Originally published in the ‘The ASCVP Gazette’. Vol 1; No. 3; October 1999.) 1 8 10 15 2 3 9 4 5 6 7 11 12 13 14 16 17 18 19 20 23 21 24 22 APRIL 2022 | www.anzcp.org 48