1. Messenger ribonucleic acid for the gonadal luteinizing hormone/human chorionic gonadotropin receptor is not present in human endometrium 
Elizabeth A Stewart, M.D., Marine Sahakian, M.D., Alan Rhoades, B.A., Bradley J Van Voorhis, M.D., Romana A Nowak, Ph.D. 
Fertility and Sterility 
Volume 71, Issue 2, Pages (February 1999)
DOI: /S (98)

2. FIGURE 1
Schematic diagram of the human LH/hCG receptor and the primer set used to amplify the cDNA for the receptor. This receptor has the classic structure of a seven-transmembrane–spanning, G-coupled receptor. The cell membrane is shown as a lipid bilayer. All primer sets amplify the extracellular region, except for the xantho primer pair, which amplifies transmembrane segments 2–6 wholly within exon 11.
Fertility and Sterility  , DOI: ( /S (98) )

3. FIGURE 2
Polymerase chain reaction products visualized on a 1% agarose gel after two rounds of amplification with the LH primer set. A 647-bp fragment is seen in the lane containing granulosa cell cDNA (GC); no bands are seen in the lanes containing yeast cDNA (Y) as a negative control or in the five separate endometrial samples (E1-E5). The darkest band of the 100-bp ladder (LAD) represents the 800-bp fragment and is indicated by an arrow. The other 20 endometrial samples amplified produced no bands.
Fertility and Sterility  , DOI: ( /S (98) )

4. FIGURE 3
Polymerase chain reaction products visualized on a 1% agarose gel after amplification with the xantho primer set. A 524-bp fragment is seen in the lane containing granulosa cell cDNA (GC), and no bands are seen in the lane containing yeast cDNA (Y) as a negative control. Bands are seen in four of the five endometrial samples (all except E3). A 100-bp ladder (LAD) is seen, with the darkest band representing an 800-bp fragment and indicated by an arrow. Bands were seen in 15 of the remaining 20 endometrial samples amplified. Sequencing confirmed the identity of the products.
Fertility and Sterility  , DOI: ( /S (98) )