function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bidzilya, Oleksiy V. & Budashkin, Yuri I.', 1],
    ['Buchner, Peter', 2],
    ['Buchner, Peter & Corley, Martin & Junnilainen, Jari', 2],
    ['Buchner, Peter & Junnilainen, Jari & Nupponen, Kari', 1],
    ['Buchner, Peter & Karsholt, Ole', 4],
    ['Buchner, Peter & Šumpich, Jan', 8],
    ['Knyazev, S. A. & Ivonin, V. V. & Ustjuzhanin, P. Ya.', 1],
    ['Landry, Bernard', 1],
    ['Landry, Jean-François & Nazari, Vazrick & Dewaard, Jeremy R.', 1],
    ['Lvovsky, Alexandr L. & Wang, Shuxia', 5],
    ['Sonderegger, Peter', 2],
    ['Telfer, Angela C & Young, Monica R & Quinn, Jenna & Perez, Kate', 2],
    ['Weidlich, Michael', 1],
    ['Zhu, Xiaoju & Zhang, Li & Wang, Shuxia', 23]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=54)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 14, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);