FIELD L 

 Column 44 



PRETREATMENT OR 



EXPERIMENTAL STATE OF THE 



HOST ORGANISM OR OF THE ORGAN, 



TISSUE, OR CELL (OF THE HOST ORGANISM) 



WHICH IS THE SITE OF THE 



PARASITE, NON- INFECTIOUS PATHOLOGY, 



OR TUMOR CODED IN FIELD E 



Symbol Z only: 



EXPERIMENTAL TREATMENT OF THE 



HOST OTHER THAN TREATMENT 



WITH THE TEST COMPOUND 



AND COMPOUND CODED IN FIELD D 



Note: The organization, general use, and specific directions and explanations for Field L are 

 so similar to those for Field G that a complete account would be largely a copy of that for Field G. To 

 avoid total repetition, the coder is requested to refer to the explanation of Field G, applying that 

 explanation to Field L. The following description of Field L, therefore, is principally to distinguish its 

 use and its relationships to Fields J, H-l, H-2, and I from the use of Field G and its relationships to 

 Fields E, H-l, H-2, and I. 



Organization 



Most of the items of Field L are almost identical in definition and organization to those of 

 Field G. The coder is referred to the explanation of the organization of Field G. However, in coding 

 Field L, reference should be made only to the definitions of symbols in the Code section for Field L. 



General Use 



Field L is used only to code experimental states of a HOST organism coded in Field J. Since the 

 relationships of Field L to Field J are so nearly identical to the relationships of Field G to Field E, the 

 coder is referred to the explanation of the general use of Field G. In that discussion, references to 

 "Field G", "Field E", "test organism", "test organism's organ or tissue", and "organ or tissue re- 

 sponding to the test compound" can in general be translated to "Field L", "Field J", "host organism", 

 "host's organ or tissue", and "organ or tissue site of the pathology in Field E", respectively, in order 

 to apply the explanation to Field L. The following corresponds to the four divisions of the explanation 

 of the general use of Field G. 



1. Field L . (Read Division 1 of the General Use of Field G, applying that discussion to Field L. ) 



2. Field L is a single column coding area, in contrast to Field G which is divided into two coding 

 areas, G- 1 and G-2 



For practical reasons, less coding space has been awarded to coding pretreatments and experi- 

 mental states of host organisms than for coding pretreatments and states of test organisms. While it 

 is true that occasionally a single coding area (Field L) is inadequate for coding all experimental states 

 of a host, just as two areas (Fields G-l and G-2) are sometimes inadequate for coding all states of a 

 test organism, the infrequency of need for more than one Field L justifies the CBCC's reserving only 

 one IBM column for it. 



3. Relationship of Field L to Fields J, H-l, H-2, and I . (Read the first two sentences of Division 

 3 of the section describing General Use of Field G, applying that discussion to Field L and 

 Field J. ) 



The latter part of Division 3 of the General Use section of Field G can not be interpreted strictly 

 to relate to Field L for the following reason. Although the relationships between Field L and Fields H-l, 



76 



