function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Howell, Nathan & Krings, Alexander & Braham, Richard R', 2],
    ['Jarvis, Charlie', 1],
    ['Ko, Kwan Su & Cha, Chang-Jun & Im, Wan-Taek & Kim, Seung-Bum', 1],
    ['Kobuski, Clarence Emmeren', 1],
    ['Kovar-Eder, Johanna & Kvaček, Zlatko & Teodoridis, Vasilis', 1],
    ['Lee, Jae-Yun & Jeong, Yun-Seok & Kim, Pil Soo', 1],
    ['Molino, Jean-François & Sabatier, Daniel & Grenand, Pierre', 1],
    ['Thornhill, Robert & Krings, Alexander & Lindbo, David', 2],
    ['Xie, Yuhui & Zhou, Shuangqing & Xu, Yun & Wu, Wenqiang', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=11)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 9, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);