function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bakalin, Vadim & Choi, Seung Se & Park, Seung Jin', 8],
    ['Bakalin, Vadim A. & Maltseva, Yulia D.', 1],
    ['Feldberg, Kathrin & Schaefer-Verwimp, Alfons & Li, Ya', 3],
    ['Konrat, Matt von & Lange, Peter de & Greif, Matt', 1],
    ['Lewington, Rodney J. & Beveridge, Peter & Renner, Matt A. M.', 1],
    ['Vana, Jiri & Hentschel, Joern & Mueller, Jochen', 5]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=19)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 6, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);