function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Alarie, Yves & Michat, Mariano C. & Watanabe, Kohei', 2],
    ['Balke, Michael & Ribera, Ignacio', 1],
    ['Ranarilalatiana, Tolotra', 1],
    ['Shaverdo, Helena & Panjaitan, Rawati & Balke, Michael', 4],
    ['Shaverdo, Helena & Panjaitan, Rawati & Balke, Michael & Unipa', 1],
    ['Shaverdo, Helena & Sagata, Katayo & Balke, Michael', 44],
    ['Shaverdo, Helena & Sagata, Katayo & Panjaitan, Rawati', 30],
    ['Shaverdo, Helena & Sumoked, Bob & Balke, Michael', 5],
    ['Shaverdo, Helena & Surbakti, Suriani & Sumoked, Bob', 14],
    ['Shaverdo, Helena & Surbakti, Suriani & Warikar, Evie L.', 23],
    ['Shaverdo, Helena & Wild, Michael & Sumoked, Bob & Balke, Michael', 9],
    ['Shaverdo, Helena V. & Balke, Michael', 1],
    ['Shaverdo, Helena V. & Hendrich, Lars & Balke, Michael', 1],
    ['Shaverdo, Helena V. & Surbakti, Suriani & Hendrich, Lars', 26],
    ['Watts, Chris H. S. & Hendrich, Lars & Balke, Michael', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=164)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 15, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);