function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Araya, Juan Francisco', 3],
    ['Budha, Prem B. & Naggs, Fred & Backeljau, Thierry', 12],
    ['Foon, Junn Kitt & Clements, Gopalasamy Reuben & Liew, Thor-Seng', 4],
    ['Herbert, David G.', 1],
    ['Muratov, Igor V.', 2],
    ['Phung, Chee-Chean & Yu, Fred Tuh Yit & Liew, Thor-Seng', 4],
    ['Salvador, Rodrigo B. & Cavallari, Daniel C. & Simone, Luiz R. L.', 2],
    ['Simone, Luiz Ricardo L. & Casati, Rafael', 1],
    ['Vermeulen, Jaap J. & Liew, Thor-Seng & Schilthuizen, Menno', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=30)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 9, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);