function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Archibald, S. Bruce & Makarkin, Vladimir N.', 12],
    ['Aspoeck, Horst & Aspoeck, Ulrike', 56],
    ['Fuente, Ricardo Perez-de la & Penalver, Enrique', 12],
    ['Guo, Mingxia & Xing, Lida & Wang, Bo & Zhang, Weiwei', 10],
    ['Hassan, Muhammad Asghar & Oswald, John D. & Zia, Ahmed', 8],
    ['Liu, Xingyue & Aspöck, Horst & Yang, Ding & Aspöck, Ulrike', 11],
    ['Liu, Xingyue & Aspöck, Horst & Zhang, Weiwei & Aspöck, Ulrike', 4],
    ['Liu, Xingyue & Lu, Xiumei & Zhang, Weiwei', 7],
    ['Liu, Xingyue & Lyu, Yanan & Aspöck, Horst & Aspöck, Ulrike', 5],
    ['Makarkin, Vladimir N. & Archibald, S. Bruce', 17],
    ['Martins, Caleb Califre & Aspoeck, Horst & Aspoeck, Ulrike', 5],
    ['Perkovsky, Evgeny E. & Makarkin, Vladimir N.', 5],
    ['Shen, Rongrong & He, Yingnan & Pan, Zhaohui & Liu, Xingyue', 4],
    ['Shen, Rongrong & Li, Bingchen & Ren, Jinlong & Shali, Yasen', 3],
    ['Tillier, Pierre', 5],
    ['Other (16)', 26]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=190)',
    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);