Yet, in the 17th century, a professor of anatomy at the University of Copenhagen objected: ‘ Those who drag in the use of human blood for internal remedies of diseases appear to misuse it and to sin gravely.
अवश्‍य, उस समय रक्‍ताधान दिए नहीं जाते थे, क्योंकि रक्‍ताधान के साथ होनेवाले प्रयोग सिर्फ़ १६वीं सदी में ही शुरू हुए ।