1970 नि दशकसिम, मेडिकेल कम्युनिटिआ बुङो दि भास्कुलार डेमेन्सियाया सिगांनि रुजुनायाव मोननो थाङामोन आरो अल्जाइमार बेरामआ बोराय बैसो गोसोआरि लोरबांथिनि बाहागोमोन।
By the 1970s, the medical community maintained that vascular dementia was rarer than previously thought and Alzheimer's disease caused the vast majority of old age mental impairments.