function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Albuquerque, Nelson Rufino De & Fernandes, Daniel S.', 12],
    ['Citeli, Nathalie & Hamdan, Breno & Guedes, Thais', 2],
    ['De Albuquerque, Nelson R. & Mcdiarmid, Roy W.', 1],
    ['Guedes, Thaís B. & Nogueira, Cristiano & Marques, Otavio A. V.', 1],
    ['Murphy, John C. & Charles, Stevland P. & Lehtinen, Richard M.', 2],
    ['Nogueira, Cristiano C. & Argôlo, Antonio J. S.', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=19)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 6, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);