function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Davies, Natalie & Lafleur, Alexandre & Hochberg, Rick', 12],
    ['De Smet, Willem H.', 28],
    ['De Smet, Willem H. & Verolet, Michel', 8],
    ['De, Willem H.', 11],
    ['LUKASHANETS, Dzmitry A. & VEZHNAVETS, Vasily V.', 20],
    ['Luo, Yongting & Segers, Hendrik', 16],
    ['Meksuwan, Phuripong & Pholpunthin, Pornsilp & Segers, Hendrik', 10],
    ['Segers, Hendrik & Shiel, Russell J.', 7],
    ['Sharma, B. K. & Sharma, Sumita', 12],
    ['Song, Min Ok & Lee, Chang-Ho', 21],
    ['Song, Min Ok & Min, Gi-Sik', 10],
    ['Sudzuki, Minoru', 18],
    ['Wallace, Robert Lee & Kordbacheh, Azar & Walsh, Elizabeth J.', 6],
    ['Wei, Nan & Jersabek, Christian D. & Xu, Runlin & Yang, Yufeng', 7],
    ['Wei, Nan & Jersabek, Christian D. & Yang, Yufeng', 6],
    ['Other (34)', 66]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=258)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 16, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);