function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Chamorro-Rengifo, Juliana & Silva, Bruno Cansanção', 5],
    ['Farooqi, Mohd Kaleemullah & Usmani, Mohd Kamil', 5],
    ['Fianco, Marcos', 5],
    ['Gorochov, Andrej V.', 4],
    ['Hemp, Claudia', 5],
    ['Hugel, Sylvain', 6],
    ['Kim, Tae-Woo & Puskás, Gellért', 4],
    ['Li, Yan-Qing & Zhang, Tao & Xin, Ya-Rui & Shi, Fu-Ming', 10],
    ['Li, Yanqing & Shi, Fuming', 8],
    ['Myagmar, G. & Gantigmaa, Ch.', 4],
    ['Nagar, Rajendra & Swaminathan, R.', 9],
    ['Nagar, Rajendra & Swaminathan, Rajamani & Meena, Ashok Kumar', 16],
    ['Piotr Naskrecki', 7],
    ['Yong, Sheyla & Perez-Gelabert, Daniel E.', 6],
    ['Zhou, Min & Bi, Wen-Xuan & Liu, Xia-Wei', 22],
    ['Other (33)', 57]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=173)',
    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);