FIELD L 

 Column 44 



5. Conflicts in Field H-2 (See Division 5 of Specific Directions and Explanations for Field G. ) 



For reasons explained in Field G, precedence is established for the three possible uses of 

 Field H-2: (1) the site of a pathology in Field E, when the organ in Field H-l is not the site of the 

 pathology (accompanied by an asterisk coded in Column 30); (2) an organ, other than the site of the 

 pathology, in a special state described by Symbols B, 0, P, or S of Field L; (3) an organ other than 

 the organ of Field H-l to which the test compound is administered as indicated by coding in Field S-3. 



6. An incidental pathological condition vs. a TREATED pathology 



Symbols 5, 7, B, C, D, N, 0, and S are used to code only pathological conditions which are 

 not being treated with the test compound and which exist contemporarily with the pathology in Field E 

 which is being treated with the test compound. 



7. Adaptations (Symbol 1). (Refer to Division 7 of Specific Directions and Explanations of 

 Field G, applying that explanation to Symbol 1 of Field L. ) 



8. Nutrient and hormone deficiencies and excesses, as incidental conditions vs. treated conditions 



Field L is not used to code any pretreatment which brought about a pathological condition which 

 was subsequently treated with the test compound for the test data being coded. In particular, any 

 pretreatments producing deficiencies (extirpation of a gland, e. g. ) which are to be treated experimentally 

 with test compounds are not indicated in Field L; the deficiency pathology will be coded in Field E and 

 if it were artificially induced for experimental purposes, the induction must be explained only in Field E-- 

 while Field L is left free for coding any experimental state incidental to this deficiency disease. 



9. Coding of data from more than two tests using several host organism strains 



Field J symbols (in contrast to Field E symbols) designate specific taxonomic strains. Therefore, 

 there is no need for a symbol of Field L to indicate that a special taxonomic strain of host organism has 

 been used in any one test. (See Division 12 below. ) However, just as Symbol F in Field G is used to 

 condense into two code lines data from several tests using several distinct strains of test organisms 

 (ref. : Division 9 of Specific Directions and Explanations of Field G), Symbol F in Field L may be used 

 to condense into two code lines data from several tests using several distinct strains of host organisms. 

 The coder should refer to the part of Field G explaining this procedure, applying it to Fields J and L. To 

 this extent (i. e. , to the extent that these several host strains may be taxonomic strains or varieties), 

 Symbol F is used to distinguish in a non-specific way taxonomic strains, which represents an exception 

 to the definition of the symbol implying that it is never used to indicate a taxonomic variety. 



10. Pretreatments represented by Symbols 2, P, Q, and R; distinctions of definitions and use of the 

 four symbols. (The explanation of these symbols is essentially the same as for Symbols 2, P, 



Q, and R of Field G. The coder is referred to Division 10 of Specific Directions and Explanations 

 for Field G, applying that discussion to Symbols 2, P, Q, and R of Field L. ) 



1 1. Use of Symbols 6 and J; STATES OF resistance or sensitization to the test compound vs . 

 PRODUCTION OF THOSE STATES 



A. States of the host 



(1) Sensitivity (Symbol 6) 



Symbol 6 is used in Field L to indicate a sensitivity to the test compound having been 

 produced in the host in Field J, in the same way as Symbol 6 of Field G is used when a 

 similar sensitivity has been produced in the test organism. (Refer to Subdivision A of 

 Division 1 1 of the Specific Directions and Explanations of Field G. ) 



(2) Resistance (Symbol J) 



Symbol J is used in Field L to indicate that the host has been made resistant to whatever 

 effects the test compound normally has on that host- -EXCEPT the effect of relieving or 

 curing the host of the pathology in Field E. In other words, if a test compound 



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