function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Camargo, Ana Carolina Alves & Luque, José L.', 1],
    ['Ernst, Ingo & Jones, Malcolm K. & Whittington, Ian D.', 9],
    ['García-Vásquez, A. & Razo-Mendivil, U. & Rubio-Godoy, M.', 8],
    ['Kohn, Anna & Cohen, Simone C. & Salgado-Maldonado, Guillermo', 2],
    ['Lopes, Daniela A. & Mainenti, Adriana & Sanches, Magda', 16],
    ['Mendoza-Garfias, Berenit & García-Prieto, Luis', 9],
    ['Muniz-Pereira, Luís C. & Vieira, Fabiano M. & Luque, José L.', 1],
    ['Přikrylová, Iva & Barson, Maxwell & Shinn, Andrew P.', 3],
    ['Richards, G. R. & Veltkamp, C. J. & Chubb, J. C.', 2],
    ['Rubio-Godoy, Miguel & Paladini, Giuseppe', 11],
    ['Truter, Marliese & Acosta, Aline A. & Weyl, Olaf L. F.', 3],
    ['Vaughan, David B. & Christison, Kevin W.', 2],
    ['Vega, Rocio & Razzolini, Emanuel & Arbetman, Marina', 2],
    ['Vianna, Rogério T. & Boeger, Walter A.', 2],
    ['Xue, Xiao-Feng & Song, Zi-Wei & Hong, Xiao-Yue', 4],
    ['Other (5)', 5]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=80)',
    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);