Key points are not available for this paper at this time.
Selwyn D. Collins, Statistical Studies of Heart Disease: V. Illness from Heart and Other Cardiovascular-Renal Diseases Recorded in General Morbidity Surveys of Families, Public Health Reports (1896-1970), Vol. 64, No. 46 (Nov. 18, 1949), pp. 1439-1492
Selwyn D. Collins (Sat,) studied this question.