function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Albano, Paolo G. & Bakker, Piet A. J. & Janssen, Ronald', 2],
    ['Bonfitto, A. & Morassi, M.', 2],
    ['Cavallari, Daniel C. & Dornellas, Ana Paula S.', 4],
    ['Daniele, Scarponi & Landau, Bernard & Janssen, Ronald', 1],
    ['Darragh, Thomas A.', 1],
    ['Hansen, Thomas', 1],
    ['Lack, Hans Walter & Böhme, Katrin & Callmander, Martin W.', 2],
    ['Mariottini, Paolo & Smriglio, Carlo & Oliverio, Marco', 5],
    ['Negri, Mauro Pietro & Corselli, Cesare', 2],
    ['Ortega, José Rafael & Gofas, Serge', 2],
    ['Sacchetti, Claudia & Landau, Bernard & Ávila, Sérgio P.', 2],
    ['Sánchez, Noelia & Damborenea, Cristina & Pastorino, Guido', 4],
    ['Thivaiou, Danae & Harzhauser, Mathias & Koskeridou, Efterpi', 2],
    ['Woodring, Wendell P.', 9],
    ['Öztürk, Bilal', 19],
    ['Other (6)', 6]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=64)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 16, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);