function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Biju, Abraham & Jasmine, Purushothaman', 2],
    ['Daneliya, Mikhail & Price, W. Wayne & Heard, Richard W.', 15],
    ['Hendrickx, Michel E. & Hernández-Payán, José Carlos', 2],
    ['Jocque, M. & Blom, W.', 3],
    ['Talbot, Suzette', 9],
    ['Wittmann, Karl J.', 1],
    ['Yolanda, Rofiza & Ambarwati, Reni & Rahayu, Dwi Anggorowati', 7]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=39)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 7, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);