17959
It is very interesting to note that 4 of these phosphoproteins , annexin A7 ( ANXA7 ) , COP9 signalosome subunit 5 ( COPS5 ) , aldehyde dehydrogenase family 1 member A1 ( ALDH1A1 ) and creatine kinase U - type ( CKMT1 ) , are known to be involved in Parkinson ' s disease , a result of significant importance since PTN and MK have been also demonstrated to limit Parkinson ' s disease ( PD ) progress and have been suggested to be among the important genetic factors possibly preventing the development of PD in methamphetamine abusers .
 Chemical: aldehyde; Chemical: creatine; Chemical: methamphetamine
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: aldehyde; Chemical: creatine; Chemical: methamphetamine