XIII, A, 6 Concepcion: Analysis of Normal Filipino Urine 359 



ACKNOWLEDGEMENTS 



I wish to express my thanks to Dr. Antonio Manalak, of 

 Bilibid Hospital, for his valuable cooperation in securing spe- 

 cimens of urine for me. My thanks are due also to the students 

 for the loyal way in which they carried out the collection of the 

 urine in every instance, and for the interest they took in the 

 investigation. 



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