PMID-sentid	Pub_year	Sent_text		comp_official_name	comp_offsetprotein_name	organism	prot_offset
15337466-3	2004	To test this hypothesis, we investigated the number of (CAG) repeats in the AR gene among two groups of infertile (n = 129) and fertile Tunisian men (n = 98), using polymerase chain reaction (PCR) targeting the AR CAG repeat tract, followed by electrophoresis on polyacrylamide gel (6%).	polyacrylamide	263-277	androgen receptor	Homo sapiens	76-78