function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Dantas, Galileu P. S. & Huamantinco Araujo, Ana A.', 2],
    ['Epler, John H.', 1],
    ['Giłka, Wojciech & Gadawski, Piotr', 2],
    ['Giłka, Wojciech & Zakrzewska, Marta & Dominiak, Patrycja', 2],
    ['Hazra, Niladri & Brahma, Shubhranil & Sanyal, Kaushik', 3],
    ['Ivkovic, Marija & Doric, Valentina & Baranov, Viktor', 2],
    ['Kobayashi, Tadashi & Endo, Kazuo', 1],
    ['Liu, Wen-Bin & Yao, Yuan & Chang, Tong & Yan, Chun-Cai', 7],
    ['Tasdemir, Ayse & Akyildiz, Gurcay Kivanc', 2],
    ['Tejerina, Eva Gabriela & Paggi, Analía Constancia', 4],
    ['Telfer, Angela C & Young, Monica R & Quinn, Jenna & Perez, Kate', 1],
    ['Wang, Xinhua & Guo, Yuhong', 16]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=43)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 12, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);