function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Chen, Ronglian & Zhang, Faqi & Chen, Shilong & Chi, Xiaofeng', 1],
    ['Delos Angeles, Marjorie D. & Buot Jr, Inocencio E.', 1],
    ['Inuthai, Janejaree & Chantanaorrapint, Sahut & Poopath, Manop', 1],
    ['Kores, Paul J.', 1],
    ['Lehnebach, Carlos A. & Zeller, Andreas J. & Frericks, Jonathan', 7],
    ['Lewis, Meriwether & Cribb, Phillip James', 1],
    ['Royen, Pieter van', 22],
    ['Schlechter, Fridrich Richard Rudolf', 1],
    ['Smith, Johannes Jacobus', 2],
    ['Tandang, Danilo N. & Docot, Rudolph Valentino A.', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=38)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 10, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);