function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Constant, Jérôme & Semeraro, Linda & Moir, Melinda L.', 9],
    ['Liang, Ai-Ping & Song, Zhi-Shun', 11],
    ['Mozaffarian, Fariba', 4],
    ['Song, Zhi-Shun & Jiang, Gong-Cheng & Liang, Ai-Ping', 6],
    ['Song, Zhi-Shun & Khatri, Imran & Liang, Ai-Ping', 3],
    ['Song, Zhi-Shun & Liang, Ai-Ping', 15],
    ['Song, Zhi-Shun & Malenovsky, Igor & Chen, Jian-Qin', 14],
    ['Song, Zhi-Shun & Malenovský, Igor & Liang, Ai-Ping', 9],
    ['Song, Zhi-Shun & O\'Brien, Lois B. & Malenovsky, Igor', 5],
    ['Song, Zhi-Shun & Szwedo, Jacek & Wang, Rong-Rong', 8],
    ['Song, Zhi-Shun & Webb, Michael D. & Liang, Ai-Ping', 12],
    ['Zheng, Yan-Li & Bourgoin, Thierry & Chen 1, Lin YangXiang-Sheng', 3],
    ['Zheng, Yan-Li & Chen, Xiang-Sheng', 3],
    ['Zheng, Yan-Li & Yang, Lin & Chen, Xiang-Sheng', 8],
    ['Zheng, Yan-Li & Yang, Lin & Chen, Xiang-Sheng & Luo, Xu-Qiang', 6],
    ['Other (14)', 21]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=137)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 16, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);