A tudy of 40 U. S. Cardiac care center howed the following ratio of nure to bed. 1. 48 1. 16 1. 24 1. 52 1. 30 1. 28 1. 68 1. 40 1. 12 0. 98 0. 93 2. 76 1. 34 1. 58 1. 72 1. 38 1. 44 1. 41 1. 34 1. 96 1. 29 1. 21 2. 00 1. 50 1. 68 1. 39 1. 62 1. 17 1. 07 02. 11 2. 40 1. 35 1. 48 1. 59 1. 81 1. 15 1. 35 1. 42 1. 33 1. 41