function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Aguiar, Aline & Morais, Drausio Honorio', 1],
    ['Arabuli, Lela & Murvanidze, Lali & Faltynkova, Anna', 5],
    ['Caballero y C., Eduardo', 1],
    ['Campião, Karla Magalhães & Morais, Drausio Honorio', 13],
    ['Ingles, Lloyd G.', 1],
    ['Johnston, S. J.', 1],
    ['Klein, Walter', 1],
    ['Meskal, F. H.', 1],
    ['Paredes-León, Ricardo & García-Prieto, Luis', 14],
    ['Pinto, Hudson Alves & Melo, Alan Lane De', 1],
    ['Pratt, Henry S.', 1],
    ['Shakarbaev, U. A. & Akramova, F. D. & Azimov, D. A.', 1],
    ['Xue, Xiao-Feng & Song, Zi-Wei & Hong, Xiao-Yue', 13],
    ['Yamaguti, S.', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=56)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 14, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);