function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Batuwita, Sudesh & Benjamin, Suresh P.', 2],
    ['Beier, Max', 44],
    ['Chamberlin, Joseph Conrad', 2],
    ['Feio, J. L. De Araújo', 1],
    ['García, Fabián & Romero-Ortiz, Catalina', 3],
    ['Harvey, Mark S.', 3],
    ['Harvey, Mark S. & Mahnert, Volker', 2],
    ['Hernández-Corral, Jesús & Zaragoza, Juan A. & Micó, Estefanía', 1],
    ['Hoff, C. Clayton', 4],
    ['Lawrence, Reginald Frederick', 1],
    ['Mahnert, Volker', 2],
    ['Mahnert, Volker & Iorio, Osvaldo Di & Turienzo, Paola', 13],
    ['Novák, János', 2],
    ['Romero-Ortiz, Catalina & García, Fabian & Villarreal, Eduardo', 7],
    ['Romero-Ortiz, Catalina & Sarmiento, Carlos E. & Harvey, Mark S.', 11],
    ['Other (3)', 3]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=101)',
    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);