function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Adrain, Jonathan M.', 17],
    ['Adrain, Jonathan M. & Karim, Talia S.', 15],
    ['Bignon, Arnaud & Cronier, Catherine', 2],
    ['Budil, Petr & Mergl, Michal', 6],
    ['Fortey, Richard A. & Wernette, Shelly J. & Hughes, Nigel C.', 2],
    ['Hughes, Helen & Thomas, Alan', 1],
    ['Mergl, Michal & Budil, Petr', 4],
    ['Mychko, Eduard & Alekseev, Alexander', 2],
    ['Mychko, Eduard V. & Savchuk, Oles V.', 4],
    ['Noble, Paula & Aitchison, Jonathan C. & Danelian, Taniel', 1],
    ['Vanderlaan, Tegan A. & Ebach, Malte C.', 60],
    ['Viersen, Allart P. Van & Prescher, H.', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=115)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 12, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);