function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bonfitto, Antonio & Morassi, Mauro', 3],
    ['Kantor, Yuri I. & Fedosov, Alexander & Puillandre, Nicolas', 2],
    ['Kilburn, Richard N.', 2],
    ['Leal, José H.', 1],
    ['Li, Bao Quan & Kilburn, Richard N. & Li, Xin Zheng', 9],
    ['Li, Baoquan & Li, Xinzheng', 1],
    ['Mariottini, Paolo & Smriglio, Carlo & Oliverio, Marco', 1],
    ['Morassi, Mauro & Bonfitto, Antonio', 3],
    ['Scarponi, Daniele & Bella, Giano Della & Ceregato, Alessandro', 9],
    ['Stahlschmidt, Peter & Poppe, Guido & Tagaro, Sheila', 2],
    ['Woodring, Wendell P.', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=34)',
    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);