|
|
|
front |1 |2 |3 |4 |5 |6 |7 |8 |9 |10 |11 |12 |13 |14 |15 |16 |17 |18 |19 |20 |21 |22 |23 |24 |25 |26 |27 |28 |29 |30 |31 |32 |33 |34 |35 |36 |37 |38 |39 |40 |41 |42 |43 |44 |review |
 |
It is essential,
before commencing the study, to exclude from among the study group of
exposed persons. Those persons already having the disease in question in any form, either in an incipient stage at cellular or biochemical level or in its early unrecognizable stages. |