function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Castroviejo-Fisher, Santiago & Guayasamin, Juan M.', 1],
    ['Catenazzi, Alessandro & May, Rudolf Von & Lehr, Edgar', 1],
    ['Cisneros-Heredia, Diego F. & Guayasamin, Juan M.', 1],
    ['Cisneros-Heredia, Diego F. & Mcdiarmid, And Roy W.', 1],
    ['Guayasamin, Juan M. & Bustamante, Martín R.', 2],
    ['Guayasamin, Juan M. & Trueb, Linda', 1],
    ['Myers, C. W. & Donnelly, M. A.', 1],
    ['Reyes-Puig 1,2, Juan Pablo & Reyes-Puig 1,3,4, Carolina', 1],
    ['Szekely, Paul & Cordova-Diaz, Maria & Hualpa-Vega, Daniel', 1],
    ['Twomey, Evan & Delia, Jesse & Castroviejo-Fisher, Santiago', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=12)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 10, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);