function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Al-Kandari, Manal & Polikarpov, Igor & Nithyanandan, Manickam', 1],
    ['Alves, Jessika & Johnsson, Rodrigo & Senna, André R.', 2],
    ['Appadoo, C & Myers, AA', 1],
    ['Appadoo, Chandani & Myers, Alan A.', 3],
    ['Ariyama, Hiroyuki', 3],
    ['Hughes, Lauren E.', 13],
    ['Krapp-Schickel, Traudl', 6],
    ['Krapp-Schickel, Traudl & Vader, Wim', 4],
    ['Myers, Alan A. & Nithyanandan, Manickam', 1],
    ['Sir, Sally & White, Kristine N.', 1],
    ['Thacker, Dimple & Patel, Krupal & Myers, Alan', 1],
    ['White, Kristine N. & Sir, Sally J.', 3],
    ['Wongkamhaeng, Koraon & Coleman, Charles Oliver', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=41)',
    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);