function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Brunke, Adam J. & Klimaszewski, Jan & Dorval, Julie-Anne', 1],
    ['Della Rocca, Francesca & Stefanelli, Silvia & Cardarelli, Elisa', 1],
    ['Glotov, Sergii V. & Drogvalenko, Oleksandr M.', 1],
    ['Huber, Barbara & Gubelmann, Päivi & Büche, Boris', 1],
    ['Klimaszewski, Jan & Chandler, Donald S. & Davies, Anthony', 6],
    ['Klimaszewski, Jan & Godin, Benoit & Bourdon, Caroline', 1],
    ['Klimaszewski, Jan & Godin, Benoit & Langor, David', 2],
    ['Klimaszewski, Jan & Larson, David J. & Labrecque, Myriam', 2],
    ['Klimaszewski, Jan & Webster, Reginald P. & Langor, David W.', 11],
    ['Mulsant, Martial Étienne & Rey, Claudius', 2],
    ['Thomson, Carl Gustaf', 1],
    ['Webster, Reginald & Klimaszewski, Jan & Pelletier, Georges', 1],
    ['Webster, Reginald P. & Klimaszewski, Jan & Bourdon, Caroline', 3]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=33)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 13, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);