172 



QUARTERLY JOURNAL OF MEDICINE 



00 •^ 00 o 

 O ■>* 1— I C<l 

 CO -^ CO 1-1 



(N (N (N t>- 



Tfl l>- (M CO <M O ""I ^ O «D OS "0 



■<^lr— 05t-H >— (OJrHf— < 0>(Mt-»OS 



CpOOOOC- CO c~ «o O CSIOOOO 



C^C<I<NOO C<ICSjC^o6 (NCOC^ItA 



P4 



pq 





t ^ 



PQ 



•^ 



OOOi-i 

 CO -^ ■"i* 



C<I W (N 



S 00 eo o 



§ CMrH eg 



I ^^^ 



8 





,-( t>. CO CO 1-H r-t 



.-I i-H 19 "T* "^ °9 

 CO coc<i ci csi eg 





O 



CO 00 



^ 



I 00 

 Ot-< 

 <N 1— ( 



(N CO 



00 (N 



2!i 



O 



CO 



s 



c5 



^ 





