With whom did they trade and what language did they speak?

What happens in puerto rico in 2012 to celebrate the anniversary of clemente's 3000th hit

Awaiver of the requirement for documentation of informed consent may be granted when: the investigator has no convenient place to store signed consent forms separate from the research datathe only record linking the subject and the research is the consent document and the principal risk is a breach of confidentiality.potential subjects might find some of the research questions embarrassing, personal, or intrusivethe subjects are literate in their own language; however, they do not read, write, or speak english

The principal effector function of igm is