function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Brady, George Stewardson', 1],
    ['Brandão, Simone N. & Saeedi, Hanieh & Brandt, Angelika', 2],
    ['Chavtur, Vladimir G. & Keyser, Dietmar', 14],
    ['Chavtur, Vladimir G. & Shornikov, Eugeny I. & Lee, Eui-Hyeong', 9],
    ['Chen, Xiaoyin & Xiang, Peng & Chen, Ruixiang', 1],
    ['Chen, Xiaoyin & Xiang, Peng & Chen, Ruixiang & Lin, Mao', 1],
    ['Guernet, Claude & Huyghe, Damien & Lartaud, Franck', 2],
    ['Kornicker, Louis S. & Iliffe, Thomas M.', 4],
    ['Lum, Kimberly E. & Syme, Anna E. & Schwab, Anastasia K.', 2],
    ['Schornikov, Evgeny I.', 3],
    ['Xiang, Peng & Ye, Youyin & Chen, Xiaoyin & Chen, Ruixiang', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=40)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 11, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);