Int J Cardiol. 2007 Oct 31;122(1):96-7. Epub 2007 Jan 18.
Kolovou GD, Damaskos DS, Anagnostopoulou KK, Salpea KD, Dritsas A, Giannakopoulou V, Vasiliadis IK, Cokkinos DV

We evaluated 62 exercise treadmill tests (ETTs) in equal numbers of heterozygous for familial hypercholesterolemia (hFH) and healthy (HLY) women, matched for age, baseline systolic and diastolic blood pressure (BP) and baseline heart rate (HR), using the Bruce protocol. 

https://www.internationaljournalofcardiology.com/article/S0167-5273(06)01453-7/fulltext